BMW M4 ultra-high performance

 BMW M4 ultra-high performance "CSL", 175kg lighter and amazing performance

BMW announced the " M4 CSL " in Europe on May 20th. Based on the new " M4 Coupe ", is a higher-performance model with further weight reduction and is scheduled to produce 1000 units worldwide.

"CSL" is an abbreviation for "Coupe (or Competition) Sport Lightweight". It is a model located at the top of the BMW M 2-door coupe. The last time the CSL was prepared was the 2004 M3 CSL Coupe. The M4 CSL will be the first CSL revival in about 20 years.

At M4 CSL, we worked on weight reduction by utilizing the know-how of racing cars. By removing the rear seats and making it a 2-seater, the weight is reduced by 21kg. The "M Carbon Full Bucket Seat" is 24kg lighter than the standard seat installed in the "Competition" of the new M4 coupe. -21kg due to chassis changes such as M carbon-ceramic brakes and special aluminum wheels. -15kg by reducing sound insulation and using lightweight insulation. In addition to the CFRP (carbon fiber reinforced plastic) roof of the base vehicle, CFRP is also used for the bonnet, trunk lid, and center console to weigh minus 11 kg. Titanium silencer minus 4 kg. By changing details such as the kidney grille, tail lights, floor mats, and auto air conditioner, the weight was reduced by -4kg and the weight of the vehicle was reduced to 1625kg. It is 175kg lighter than the base vehicle.

The direct-injection 3.0-liter in-line 6-cylinder gasoline twin-turbo engine has been tuned to raise the turbo boost pressure from 1.7 bar to 2.1 bar. As a result, the maximum output has been increased to 550hp / 6250rpm, which is 40hp plus compared to the competition of the new M4 coupe. The maximum torque was left unchanged at 66.3kgm, but it was set to be pulled out in a wider range of 2750 to 5950rpm. The transmission is combined with an 8-speed "M Steptronic" equipped with "Drive Logic". As for power performance, 0-100km / h acceleration has been shortened by 0.2 seconds to 3.7 seconds. The maximum speed has been raised from 290km/h to 307km/h.