The New BMW M4 CSL: Excessive efficiency with Motorsport DNA
• Energy boosted by 40 hp to 543, weight diminished by 240 kilos, distinctive chassis enhancements
• Unique seating for 2, with track-ready M Carbon full bucket seats
• Quickest lap across the Nordschleife of any manufacturing BMW: 7:20.2
• World manufacturing restricted to 1,000 items
• 0 to 60 mph in 3.6 seconds
• 0 to 120 mph in 10.5 seconds
• Carbon fiber roof, hood, and trunk lid
• Out there colours: Frozen Brooklyn Gray, Alpine White, Black Sapphire Metallic
• Manufacturing at Plant Dingolfing beginning July 2022
• Base MSRP $139,900 plus $995 vacation spot
• Obtain full press launch [PDF]
Woodcliff Lake, NJ – Might 19, 2022…A legend is reborn. As its fiftieth birthday celebrations collect steam, BMW M GmbH is unveiling a really particular restricted version mannequin. The brand new 2023 BMW M4 CSL fuses old-school racing ardour with progressive expertise to create an inimitable efficiency expertise. Its standalone character profile is rooted in two core options: an influence hike of 40 hp over the present BMW M4 Competitors to 543 hp and a 240- pound discount in weight.
Clever light-weight design, purity of function.
The brand new BMW M4 CSL represents a extremely concentrated showcase for the racing craft of BMW M GmbH and its experience in powertrain and chassis growth and light-weight design. For instance, the corporate can name on a few years of expertise in working with carbon fiber strengthened plastic (CFRP) for physique, chassis, and inside parts. The M engineers have managed to limit the CSL’s curb weight to three,640 lbs. An impressive power-to-weight ratio of 6.7 lbs/hp offers the best platform for a dynamically masterful driving expertise. The brand new BMW M4 CSL can dash from 0 to 60 mph in 3.6 seconds, whereas the highest pace is an electronically restricted 191 mph.
With its next-level energy, clever light-weight design, two-seater configuration, model- particular chassis upgrades and tools options chosen particularly for the job at hand, the brand new BMW M4 CSL has observe driving as its raison d’tre. By no means earlier than has the general car idea of a manufacturing mannequin been so near that of the associated BMW M GmbH racer. The genes the brand new BMW M4 CSL shares with its competition-spec sibling, the BMW M4 GT3, are additionally mirrored in its efficiency attributes. In take a look at runs on the Nrburgring’s Nordschleife circuit, which symbolize the final word yardstick for brand-typical dynamics like agility and dealing with precision for all BMW M automobiles, the M4 CSL posted a lap time of seven:20.2, the quickest time ever for a series-production BMW.
The subsequent chapter in an enthralling story begins within the anniversary 12 months of BMW M.
Lap instances apart, the brand new BMW M4 CSL additionally provides the on a regular basis usability for which high- efficiency sports activities automobiles from BMW M are celebrated. This implies drivers can take pleasure in an intense racing-car feeling on the highway in addition to on the observe. The M4 CSL follows within the tire tracks of illustrious special-edition fashions from earlier generations of the BMW M3 and M4. Just like the legendary BMW M3 CSL of 2003 and the BMW M4 GTS launched in 2016, the brand new particular version from BMW M GmbH delivers a driving expertise as bewitching as it’s unique.
Manufacturing of the brand new BMW M4 CSL will start at Plant Dingolfing in July 2022 and will probably be restricted to only 1,000 items globally.
Elementary and detailed: clever light-weight design within the BMW M4 CSL.
The important thing components within the standout efficiency attributes of the brand new BMW M4 CSL might be present in its title. Light-weight design has performed a central position at BMW M GmbH from day one. In 1973, the BMW 3.0 CSL developed by BMW Motorsport GmbH received the European Touring Automotive Championship in its first try – thanks in no small measure to a dedication to chopping the burden of its series-produced donor mannequin. As we speak, the CSL designation stands for “Competitors, Sport, Light-weight” and identifies high-performance fashions with very excessive energy, rigorously diminished weight, and a track-focused character.
Clever light-weight design was a elementary technique within the growth of the brand new BMW M4 CSL, one which was utilized on an in depth stage. A concentrate on the attributes thought-about important for an elite sports activities automotive was accompanied by the selective use of supplies, that means all of the efficiency and performance the client expects is current, however whereas including considerably much less weight.
For instance, standard parts for the outside and inside, powertrain and chassis have been changed with light-weight model-specific options. Becoming M Carbon full bucket seats alone diminished weight by 53 lbs, whereas an additional 46 lbs have been saved by eradicating the rear seats and seat belts and integrating a partition between the cabin and baggage compartment. Chassis alterations, together with the addition of ordinary light-weight M Carbon ceramic brakes and cast light-alloy wheels, springs and struts, diminished weight by one other 46 lbs. Switching to ultra-lightweight sound insulation and decreasing the quantity used saved one other 33 lbs. The usage of CFRP parts on the inside and outside of the M4 CSL saves a further 24 lbs. A titanium rear silencer cuts greater than 9 lbs from the burden of the exhaust system. Element modifications shave one other 8 lbs from areas together with the BMW kidney grille, back lights, flooring mats and computerized local weather management.
Roof, hood, and trunk lid in carbon fiber.
The roof panel on the BMW M4 CSL, as on the M4 Competitors, is constructed from CFRP. The usage of this light-weight but vastly strong high-tech materials on the highest level of the physique reduces the car’s general weight whereas reducing its heart of gravity, which in flip enhances agility and cornering dynamics. Going a number of steps additional, nevertheless, the BMW M4 CSL additionally makes use of carbon fiber for the hood and trunk lid.
The CFRP hood is roughly 3 lbs lighter than the BMW M4 Competitors’s aluminum hood. Its carbon-fiber construction is clearly revealed by two sculpted channels extending consistent with the BMW kidney grille components to the sting of the hood because it approaches the windscreen. The perimeters of the unpainted channels are bordered in purple. Pink accent strains additionally convey additional visible emphasis to the “double bubble” CFRP roof of the brand new BMW M4 CSL and the contours of its prolonged aspect sills.
The purple accents and uncovered carbon-fiber stand in dynamic distinction with the non-obligatory Frozen Brooklyn Gray metallic exterior paint end to create a high-impact visible assertion.
Alternatively, prospects may specify their new BMW M4 CSL in normal Alpine White or Black Sapphire metallic. Commonplace BMW M 50 Years emblems for the hood, trunk lid and wheel heart caps mark the fiftieth anniversary of BMW M GmbH. Their design recollects the blue/violet/purple emblem first seen on the BMW Motorsport GmbH racing automobiles in 1973.
CFRP can be used for the splitter fitted to the decrease fringe of the entrance apron to generate extra downforce, and the inserts within the air curtains at its outer edges. The splitter options daring purple accents and “CSL” lettering. The model-specific, weight-minimized BMW kidney grille has a extra minimalist design than on the usual M4, with fewer slats and vast areas between them optimizing airflow to the radiators. The distinctive grille options purple contour strains and “M4 CSL” badging. The central air inlet of the brand new BMW M4 CSL is subdivided by simply two horizontal kidney grille bars along with the bumper component.
The CFRP trunk lid of the BMW M4 CSL weighs 15 lbs lower than the one used on the BMW M4 Competitors. The trunk lid additionally sports activities a outstanding integral spoiler. This dramatic aero component echoes the same design function of the 2003 BMW M3 CSL and generates vital rear-axle downforce in dynamic driving conditions. The diffuser built-in into the rear apron of the brand new BMW M4 CSL and the outside mirror caps are additionally constructed from CFRP.
BMW Laserlight: yellow daytime working lights, progressive back lights fitted as normal.
The BMW Laserlight headlights convey a contact of the racetrack to the entrance of the brand new BMW M4 CSL. Each within the welcome sequence triggered when unlocking the doorways and when the high and low beam headlights are switched on, the angular daytime working lights illuminate in yellow somewhat than white, evoking the look of GT racing automobiles.
The back lights of the brand new BMW M4 CSL function progressive expertise making its debut in a series-produced automotive. Whereas all the sunshine capabilities use LEDs, the glass covers have intricate gentle threads woven into them that are illuminated utilizing laser expertise, bringing a vibrant construction to the floor of the back lights and creating a particular gentle signature recognizable from an extended distance after darkish. The association of the three threads, which run parallel to 1 one other throughout the interior part of the sunshine items and overlap one another within the outer space, creates a visually beautiful interpretation of the hallmark BMW L-shaped rear gentle contour. Moreover, the illuminated “BMW Laser” lettering on the sunshine covers hints on the progressive gentle expertise under the floor.
The mannequin badges on the rear, entrance aspect panels and BMW kidney grille even have a brand new design. With their black surfaces and purple define, they sign the CSL’s sporting mission with visually understated type.
The best mixture of dynamics and light-weight design: strut braces within the engine compartment, titanium rear silencer.
Within the engine compartment, the front-end strut brace developed particularly for the M4 CSL takes the physique rigidity to a different stage. This solid aluminum component connects the spring strut towers to one another and to the entrance finish. The geometry of the strut brace has been tailored exactly to the forces exerted in several driving conditions, thus optimizing agility and steering precision whereas minimizing materials and, due to this fact, weight.
The exhaust system of the brand new BMW M4 CSL has a rear silencer constructed from titanium and is almost 10 lbs lighter than a standard metal equal. The signature M quad tailpipes are completed in matt black trim with a stripe-patterned perforation on their interior floor. The CSL-specific exhaust system comes with electronically managed flaps, and, within the hallmark type of the excessive efficiency fashions from BMW M GmbH, its visceral soundtrack creates an intense motorsport aura each inside and outside the car.
Mannequin-specific light-alloy wheels and M Carbon ceramic brakes as normal.
The solid M light-alloy wheels in cross-spoke design have been designed solely for the brand new BMW M4 CSL. Minimized weight and a particular look are the standout traits of the 19-inch entrance and 20-inch rear matte black wheels. The exact association of the super-slim spokes provides the wheels distinctive rigidity. Their weight- optimized design additionally helps to cut back unsprung mass, additional enhancing the agile driving traits of the CSL.
M Carbon ceramic brakes are normal tools on the brand new M4 CSL and are 31.5 lbs lighter than the M Compound brakes. Their red-painted calipers clamp down arduous on 15.7-inch entrance and 15-inch rear discs. The considerably diminished unsprung mass of the M Carbon ceramic brakes additional sharpens the CSL’s agility and dynamic efficiency.
Two very particular seats.
The inside of the brand new BMW M4 CSL is an surroundings laser-focused on extracting most efficiency and creating an emotionally partaking driving expertise. The light-weight coupe solely has seats for the driving force and one passenger – however these aren’t any peculiar seats. The M Carbon full bucket seats have been developed solely for the BMW M4 CSL with the concentrate on the calls for of observe driving. Their carbon fiber construction and lack of consolation options similar to heating, lumbar help, and energy adjustment scale back weight by 53 lbs in contrast with the usual seats fitted within the BMW M4 Competitors.
With their pronounced bolsters, the M Carbon full bucket seats supply a particularly excessive stage of lateral help by corners. The backrest angle is mounted, and the seat top can solely be adjusted in a workshop utilizing a three-stage screw linkage. Fore and aft changes are made manually utilizing a lever on the entrance fringe of the seat. The pinnacle restraints might be disassembled for observe use when the driving force and passenger are sporting helmets.
The seating surfaces and backrests of the M Carbon full bucket seats are trimmed in black Merino leather-based. The outer surfaces of the backrests and head restraints have purple Alcantara inserts. Distinction stitching within the colours of BMW M GmbH adorn each the seat bolsters and the seat belts.
Heated M Carbon bucket seats with full energy adjustment can be found as a no-cost possibility for the brand new BMW M4 CSL. These seats are 21 lbs lighter than the usual seats within the BMW M4 Competitors and mix observe performance and light-weight design with a a lot larger stage of consolation and adjustability over lengthy journeys.
The stowage space behind the seats for the driving force and co-driver offers area for 2 helmet storage compartments. Eradicating the rear seat bench cuts weight by round 46 kilos.
Carbon-fiber heart console: diminished weight, unrestricted performance.
The middle console construction of the brand new BMW M4 CSL is made completely from CFRP. The fabric’s distinctive construction is clearly recognizable within the surfaces of the management panel across the gear selector, the iDrive Controller and the buttons for activating varied car settings and capabilities. The usage of carbon fiber greater than halves the burden of the middle console, saving about 9 lbs. On the identical time, it provides a well-known vary of performance, with options together with an armrest with leather-based floor and wi-fi charging tray for suitable cell phones.
Placing the ending touches to the Motorsport atmosphere of the brand new BMW M4 CSL are the usual Carbon Fiber inside trim and “CSL” badging under the headrests, on the middle console, and on the rear panel. The primary contact of the M Alcantara steering wheel, one other normal function of the brand new BMW M4 CSL, fuels the urge for food for dynamic driving. The grippy floor of the steering wheel rim, a purple heart marker within the 12 o’clock place, carbon-fiber inlays on the three spokes and CFRP shift paddles create a real track-car really feel by way of each visuals and performance.
Powertrain. Modified six-cylinder inline engine, eight-speed M Steptronic transmission and rear-wheel drive for the final word efficiency expertise.
Motorsport DNA, high-revving traits, and latest-generation M Twin Energy Turbo expertise make the inline 6-cylinder energy unit from the BMW M4 Competitors the right start line for the high-performance engine in essentially the most highly effective road-legal M4 variant ever made. Element modifications for the brand new BMW M4 CSL produce a most output of 543 hp at 6,250 rpm – a rise of 40 hp over the BMW M4 Competitors. Peak torque of 479 lb-ft is on faucet from simply 2,750 rpm and sustained all the best way as much as 5,950 rpm. Consequently, the unmistakable efficiency attributes of BMW M fashions – close to instantaneous response to each motion of the accelerator, a voracious urge for food for revs, and relentless energy supply nicely into the higher areas of the rev vary – are current in much more heightened kind. New and up to date engine mounts and rigorous software of light-weight design rules guarantee the brand new BMW M4 CSL achieves a fair greater achieve in dynamic functionality than this additional dose of energy would recommend.
A design precept targeted on extracting most energy.
The design precept for the straight-six engine has been tailored from motorsport expertise and is targeted on excessive revs and most energy supply. The crankcase’s sleeve-free, closed- deck development helps to make it extraordinarily inflexible, thus permitting very excessive combustion pressures that optimize energy output. The engine’s free-revving efficiency is aided by a twin-wire-arc-sprayed iron coating for the cylinder bores. The solid light-weight crankshaft permits the engine’s high-revving skill, whereas its torsional resistance permits it to deal with extraordinarily excessive ranges of torque.
The M-specific parts additionally embrace a cylinder head with 3D-printed core. This additive manufacturing course of permits geometric varieties to be created which can be past the potential of standard steel casting strategies. Consequently, the coolant duct routing could possibly be optimized whereas additionally decreasing its weight.
Two mono-scroll turbochargers provide compressed air to cylinders 1-3 and 4-6 respectively. The turbocharger’s energy output is additional enhanced by way of an oblique intercooler provided by a low-temperature circuit and specifically designed compressors. Increase stress has been elevated from 24.7 psi within the M4 Competitors to 30.5 psi within the CSL. Engine administration has been modified accordingly to ensure the fixed energy supply as much as the highest finish of the rev vary that has come to be anticipated of BMW M.
Working at a most stress of over 5,000 psi, the Excessive Precision Injection system ensures environment friendly combination preparation and clear combustion. VALVETRONIC variable valve timing and Double-VANOS totally variable camshaft timing likewise kind a part of the M Twin Energy Turbo expertise.
Exhaust system with titanium rear silencer and distinctive soundtrack, in and out.
The optimized routing of the dual-branch exhaust system’s pipes and their giant cross sections serve to cut back backpressure. The system’s two electrically managed flaps and bespoke titanium rear silencer moreover allow it to supply a particular engine be aware created particularly for the brand new BMW M4 CSL.
Consequently, the engine’s electrifying build-up of energy is backed by some dramatic and very resonant aural accompaniment that pulls its inspiration from motorsport. Because of the diminished use of insulating supplies, which additionally minimizes weight, and the titanium rear silencer’s particular resonance properties, the drive unit’s deeply sonorous soundtrack, with its dominant low frequencies, might be totally appreciated contained in the cabin the place it offers the driving force with correct acoustic suggestions in response to actions of the accelerator and clearly conveys the engine’s efficiency traits. Gear adjustments are accompanied by exactly outlined change within the engine be aware, whereas distinctive, low-frequency sound sequences might be heard on the overrun. The M Sound Management button on the middle console lets the driving force change to a extra restrained soundtrack when desired.
The cooling system on-board the brand new BMW M4 CSL includes a high-temperature and a low-temperature circuit. The oblique intercooler works utilizing an electrical coolant pump within the low-temperature system. The primary module within the high-temperature circuit and two distant coolers within the wheel arches provide coolant to the engine block and turbochargers with the assistance of a mechanical water pump. An electrical water pump and an electrical fan may interact when required. The big openings within the entrance apron moreover channel the oncoming air to a devoted engine oil cooler in addition to a transmission oil cooler. This serves to keep up optimum working temperatures for all powertrain parts always, each in on a regular basis use and through high-speed outings on the observe.
The engine’s weight-minimized oil sump has two separate chambers and an built-in suction channel. A further suction stage permits the map-controlled oil pump to attract lubricant from the smaller chamber, which steps in when additional capability is required. This ensures a dependable provide of oil always, even below excessive lateral and longitudinal acceleration.
Uniquely crafted engine and transmission mounts for instantaneous response.
Mannequin-specific mounts for the powertrain make sure the elevated engine energy of the brand new BMW M4 CSL is transferred to the highway by way of the rear wheels shortly and immediately. The firmer connection of engine and transmission to the automotive’s construction is clearly perceptible, particularly in extraordinarily dynamic driving conditions.
Stiffer engine mounts with equal settings on each side of the car produces an exhilarating sense of precision when driving the brand new BMW M4 CSL. For this function, the mounts’ spring charges – that are set at 580 N/mm on the left aspect and 900 N/mm on the precise within the BMW M4 Competitors – have been each elevated to 1,000 N/mm. The transmission mounts within the CSL have additionally been modified and have a mount that’s 12 p.c stiffer.
Energy channeled to the rear wheels by way of an eight-speed M Steptronic transmission with Drivelogic.
The torque produced by the S58 engine is shipped to the rear wheels of the brand new BMW M4 CSL by way of an eight-speed M Steptronic transmission with Drivelogic. The M-specific model of this computerized transmission options ratios exactly attuned to the engine’s traits and a particularly sharp shift motion matched to the engine’s efficiency. This permits gear adjustments to be carried out even quicker than within the M4 Competitors. Every gear change is clearly communicated to the driving force, even when the transmission is working in computerized mode. Handbook shifts with sequential gear choice might be carried out utilizing both the selector lever or the carbon-fiber shift paddles on the steering wheel.
Nudging both paddle permits the driving force to quickly change from automated to guide mode right away. It’s also doable to execute a number of downshifts to the bottom accessible gear in guide mode for a right away burst of acceleration from a gentle pace. The driving force merely pulls on the left shift paddle whereas urgent the accelerator to the ground. M Steptronic doesn’t drive upshifts below acceleration in guide mode – even on the rev limiter. When driving in computerized mode, adjustment of engine pace on downshifts aids dynamic braking into corners. Blipping the throttle on this method reduces the undesirable engine braking impact when the automotive is being pushed arduous. The driving force can use the Drivelogic button built-in into the selector lever to change the shift traits with a selection of three clearly distinguishable modes, together with a particular track-optimized setting.
The exceptionally highly effective inline 6-cylinder engine within the new BMW M4 CSL works along with the gearbox, the powertrain’s extraordinarily inflexible mounting, and rear-wheel drive to ship an emotionally inspiring and rewarding efficiency expertise laced with thrilling acceleration. The special-edition mannequin takes simply 3.6 seconds to succeed in the 60 mph mark from relaxation and may dash to 120 mph from a standing begin in simply 10.5 seconds.
The chassis. Signature M precision at its most interesting.
Just like the engine within the new BMW M4 CSL, its chassis expertise advantages from a wealth of element upgrades tailor-made to the engine’s efficiency traits. The modifications additionally issue within the substantial discount in car weight and the model-specific enhancements to physique rigidity, permitting the mix of agility, athleticism, and precision for which BMW M automobiles are celebrated to be taken to new heights. The main focus is clearly on forming an in depth connection between driver and car that interprets right into a sublimely completed efficiency expertise. The tailor-made chassis expertise expands the automotive’s dynamic limits whereas guaranteeing exactly controllable dealing with traits thanks primarily to the linear build-up of lateral acceleration forces attribute of M fashions.
Offering the best foundation for the brand new BMW M4 CSL’s chassis expertise is the mixture of a double-joint spring strut entrance axle and five-link rear axle, each in M specification. This design precept was developed particularly for the high-performance sports activities automobiles on this mannequin vary. Additionally normal is the Adaptive M Suspension with electronically managed dampers, electromechanical M Servotronic steering with variable ratio and an M-specific model of the built-in braking system.
The individually tuned axle kinematics and model-specific wheel camber settings, dampers, auxiliary springs, and anti-roll bars optimize steering precision, transmission of lateral management forces when cornering, spring and damping response, and wheel location. These element modifications and the built-in software of all powertrain and chassis techniques in intensive testing on the Nrburgring’s Nordschleife circuit have helped maximize the dynamic efficiency of the brand new BMW M4 CSL, whereas additionally enabling fingertip management in dedicated observe driving.
A lowered trip top, auxiliary springs, and distinctive dampers.
The model-specific suspension is accompanied by a drop in trip top of 0.3-inches in contrast with the BMW M4 Competitors. This lowers the car’s heart of gravity, additional enhancing the agility and cornering dynamics of the brand new BMW M4 CSL. Auxiliary springs are additionally fitted at each the entrance and the rear axle and enhance highway contact in extremely dynamic driving conditions. The anti-roll bars at each axles and their mountings have likewise been specifically engineered for this mannequin.
The entrance axle’s cast swivel bearing has extra camber, tremendously rising the automotive’s skill to place down energy by high-speed corners. On the rear axle, 4 extra ball joints with zero play substitute the rubber mounts for the management arms on each the axle subframe and wheel provider sides, thereby reducing the secondary spring charges. This has the impact of optimizing not simply wheel location and camber stiffness, but in addition damper response. The rear-axle subframe has a inflexible connection to the physique with none versatile rubber components. Usually utilized in competitors automobiles, any such mounting additional improves wheel location and directional stability.
The damping forces are easily adjusted for every particular person wheel to swimsuit the altering highway floor circumstances and driving scenario. This all occurs within the area of some milliseconds utilizing electromagnetic valves. There’s a selection of three modes within the M Setup menu for the fundamental damper setting. The setup in SPORT mode was fine-tuned throughout exhaustive testing on the Nordschleife. Damper drive management in SPORT PLUS mode is designed for pushing the automotive to the restrict on completely surfaced highway programs, whereas COMFORT mode is good for smoothing out highway imperfections in on a regular basis driving.
Commonplace M Carbon ceramic brakes and individually adjustable pedal really feel.
The usual M Carbon ceramic brakes on the brand new BMW M4 CSL work in unison with the built-in braking system to offer immense but exactly controllable stopping energy. Six- piston, fixed-caliper brakes on the entrance and single-piston, floating-caliper on the rear endow the CSL with exceptional braking talents whereas guaranteeing enhanced fade resistance and thermal stability. The built-in braking system generates a level of braking energy adjusted exactly to the driving force’s inputs, whereas additionally offering suggestions that’s unimpaired by moist highway surfaces, sturdy lateral acceleration, or excessive brake temperatures. The result’s very good pedal really feel in all conditions. The M-specific model of the built-in braking system presents the driving force with two pedal really feel settings that may be chosen from the M Setup menu. This progressive system brings collectively the brake activation, brake booster and braking management capabilities inside a compact module, whereas an electrical actuator is used to set off the required brake stress.
M Traction Management honed for the observe.
The inclusion of the built-in braking system permits the DSC [Dynamic Stability Control) system to intervene more swiftly and precisely than ever. Traction control duties have also been relocated from the DSC control unit to the engine management, allowing the engine’s power to be adjusted with exceptional precision when accelerating on slippery surfaces. In addition, the new BMW M4 CSL lets the driver set individual intervention thresholds for wheel slip limitation. The standard M Traction Control function offers a choice of ten different stages for this, and there is also the option of fully deactivating the DSC system by engaging M Dynamic Mode.
The M Traction Control function in the new BMW M4 CSL has been specially configured for track use. Traction control in stages 1 to 5 is regulated in the same way as in the BMW M4 Competition, with stage 5 allowing the least slip at the driven wheels and stage 1 the most. By striking the balance they desire between track performance and handling stability on dry roads, drivers can carefully explore the car’s dynamic limits and execute controlled drifts when cornering at speed.
M Traction Control stages 6 to 10, on the other hand, have been devised for the specific conditions encountered on the track. They are based on the application developed for touring car racers and make allowance for both track surface conditions and tire temperature. Instead of merely facilitating controlled drifts, these stages are geared towards optimizing traction under any circumstances and therefore delivering quick lap times. The intervention thresholds for traction control are therefore set extremely high in stages 6 and 7, which are designed for driving on a dry track with the tires at optimum temperature. If the tires are cold or too hot, however, or the track is damp or wet, drivers can engage stages 8 to 10, which gradually lower the intervention thresholds with the goal of maximizing the performance capabilities of the new BMW M4 CSL even in very challenging driving conditions.
Exclusive M light-alloy wheels and model-specific high-performance tires.
The new BMW M4 CSL rides on forged M light-alloy wheels sporting on exclusive cross-spoke design. These lightweight wheels are fitted with ultra-high performance Michelin Pilot Sport Cup 2 R tires measuring 275/35 ZR19 at the front and 285/30 ZR20 at the rear which were developed specifically for the CSL. The tires are designed for extremely dynamic longitudinal and lateral performance on the track and enable highly effective transmission of both acceleration forces and lateral control forces when cornering.
The new BMW M4 CSL may also be ordered with the traditional high performance tires from the M4 Competition in the same sizes, at no cost. These tires enable highly dynamic driving while enhancing comfort in everyday use and on long journeys.