BMW M is celebrating its fiftieth anniversary this 12 months and we will not consider a greater approach to mark the event than the announcement of a brand new M4 CSL (Competitors Sport Light-weight). Whereas the M3 Competitors already packs a wholesome 503 horsepower, the CSL tacks on 40 extra whereas concurrently stripping 240 kilos from the its curb weight. BMW says this makes the 2023 BMW M4 CSL the quickest manufacturing BMW to ever lap the Nordschleife, doing so in 7:20.2.
543 horsepower is loads spectacular for a compact sport sedan, however the 240-pound food plan from the already-svelte Competitors mannequin is the actual eye-catcher right here. The CSL weighs simply 3,640 kilos. That is 20% extra weight than the E46 M3 CSL (which pioneered the carbon fiber roof in manufacturing BMW M automobiles) needed to carry round. Good factor the M4 packs 50% extra energy — sufficient to propel it from 0 to 60 mph in 3.6 seconds on its approach to an electronically restricted 191-mph high velocity. That is really 2/10ths slower to 60 than BMW’s personal determine for the M4 Competitors xDrive, which checks in at 3,979 kilos. All-wheel drive counts for lots off the road.
Whereas the CSL will get extra energy, peak engine torque stays at 479 pound-feet. The CSL’s forty bonus horses come from an extra 5.8 kilos of enhance (for 30.5 psi complete) and recalibrated engine administration for higher-RPM energy supply. There’s additionally a light-weight (go determine) titanium exhaust and a brand new set of firmed-up engine mounts that ought to enhance each response and suggestions. Pulling a whole American out of the M4 required considerably excessive measures, to the purpose the place BMW halved the quantity of accessible seating within the title of decreasing mass. Rather than the rear seats, you get a helpful little helmet storage cubby and accompanying cargo internet.
Whereas that is one of many M4 CSL’s most evident concession to reducing curb weight, it actually is not the entire story. The CSL’s hood, roof and trunk lid are all carbon fiber, as are the remaining bucket seats. These shapely thrones account for 53 of the 240 kilos BMW shaved off the Competitors’s curb weight. Lighter-weight and extra sparingly used sound insulation saved one other 33; its lighter wheels, carbon ceramic brakes and cast chassis parts contributed one other 46. BMW even slimmed down the grille. Assume we’re joking?
“The model-specific, weight-minimized BMW kidney grille has a extra minimalist design than on the usual M4, with fewer slats and huge areas between them optimizing airflow to the radiators,” BMW’s announcement mentioned. “The distinctive grille options crimson contour traces and ‘M4 CSL’ badging.”
Sadly for BMW, Highway Check Editor Zac Palmer — Autoblog‘s staunchest defender of BMW’s current nostril job — was too busy taking part in with different cool automobiles to talk up on behalf of BMW’s design crew, rendering our inside vote unanimous: it is nonetheless ugly. The carbon trunk lid seems good, no less than, and BMW says the built-in spoiler generates “important” rear-axle downforce.
The CSL sits decrease than the usual M4 Competitors and will get its personal Adaptive M Suspension tune to account for its diminished weight. Helper springs had been put in each entrance and rear to maintain the agency major springs in place when the suspension is in full droop, making dynamic transitions extra linear and predictable. Rubber management arm mounts on the rear subframe had been additionally changed with ball joints to scale back compliance and enhance damper response. Ending off the CSL package deal is a set of Michelin Pilot Sport Cup 2 R tires in 275/35ZR19 up entrance and 285/30ZR20 out again
The 2023 BMW M4 CSL will sticker for $140,895 when it goes on sale later this 12 months, however we count on real-world transaction costs might be far dumber than that. Manufacturing will start in July and be restricted to simply 1,000 models. Good luck.
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