BMW, on the 50th anniversary of the founding of its M division, has prepared a gift for sports enthusiasts and launched M4 CSLa special limited series that is also a kind of homage to the winner of the 1973 European Tour Championships.
The starting point was the M4 competition, where he injected some extra vitamins into the 3.0-liter six-cylinder engine, took some steps to shed 100kg of weight and ended up setting the required record on the Nürburgring: 7min 15min. 677 seconds (in the “Classic” configuration for 20.6 km) and 7 minutes 20.207 seconds (in the currently valid 20.832 km configuration which includes the straight in the T13 section).
Which means that the M4 CSL (Competition, Sport, Light) we show you here is the new owner of the best time BMW has made in series production so far in “Green Hell”.
Must see: BMW 3 Series gets a new ‘face’ and interior but says goodbye to manual gearbox
We love the smell of burning rubber in the morning.
Other impressive records in this fight against time are 3.7 seconds from 0 to 100 km/h (0.2 seconds less than the M4 competition), reaching 200 km/h in just 10.7 seconds or a top speed of 307 km/h, which would be Higher if electronics aren’t called to ‘silence’ the dynamic frenzy under the hood of the M4 CSL.
When BMW announces a new CSL, fans of the Bavarian brand begin to daydream, because previous achievements fully justify it. Many still remember the “Batmobile”, the BMW 3.0 CSL from 1973 or the radical M3 CSL (E46) from 2003 with 360 hp.
How to lose 100 kg
“Here we had to be very creative to be able to shed 100kg for the CSL version,” asserts Sebastian Meyer, project manager, not least because the car that served as the starting point – the M4 competition – isn’t exactly a heavyweight. But in the end, the diet goal was achieved with the official 1625 kg (DIN) weighing M4 CSL.
We highlight the following actions: removal of the rear seats and their replacement with compartments for storing helmets and there was 21 kg outside the rim; Seats made entirely of carbon, 25 kg less; No carpets and grilles, as well as less sound-insulating materials in the passenger compartment (with the added advantage of allowing you to better hear the delicious roar of the engine), a saving of 15 kg.
Then other measures like the carbon-fibre bonnet and trunk lid (in the M4, the roof was actually made of this ultra-light and tough material), brakes with standard carbon-ceramic discs, special-alloy wheels, lighter springs and shock absorbers. , etc. Some equipment has been simplified, such as single-zone air conditioning (instead of the two-zone on the M4), LED headlights – including an optional laser light – and a panel-free luggage compartment.
Engine with a little “dust”
The inline six-cylinder engine saw turbo pressure increase by 0.4 bar to 2.1 bar and received new management that increased power by 40 hp over the M4 competition, reaching 550 hp, resulting in an increase in power and weight. Ratio of 2.95 kg / hp.
To ensure that power can be put all the way to the tarmac once it’s transmitted through the eight-speed M-Steptronic automatic transmission, the engineers at BMW’s M division lowered the ground clearance by 8mm, while increasing the front wheel camber. , stabilizer bars of a larger diameter were installed, all rubber mounts were replaced with ball bearings on the rear axle, smearing of the springs was reduced and modified software of electronic dampers.
Must see: Alfa Romeo Giulia GTAM. 540 hp and 100 kg less. The ultimate gym?
CSL fans will surely understand that the inclusion of all-wheel drive would be a novelty, as the traction is only done by the rear wheels. The traction control function M (Standard) has lane-specific adjustments, allowing the driver/driver to set intervention thresholds to reduce wheel slip.
On dry asphalt, M traction control levels from “1” to “5” help the driver do just that drifts They are controlled, while levels “6” through “10” depend on the application developed for touring riders and are tuned to wet and dry conditions (and varying tire temperatures) for increased traction and directional stability.
See also: BMW XM. We already know the power of BMW M anti-Urus
when will you arrive?
Production of the first units starts at the Dingolfing plant (Munich) in July, but no interested customer will be able to allocate €165,200 (in Germany; with taxes in Portugal it should be around €200,000…) to guarantee the 1,000 copies that will be manufactured. 250 is for the US, 150 is for Germany…and so on, so there will be little left for “margin” markets.
Yellow for daytime running lights only with optional laser light.