Meet The 520-HP BMW M2 CSL That BMW Won't Build
The important details to justify the 'CSL' tag are as follows. What started out as a regular M2 Competition has seen various weight-saving measures reduce overall weight by around 242 lbs - placing it in a similar ballpark to the curb weight of the E46 M3 CSL. Then, the twin-turbocharged S55 inline-six under the hood got some massaging from Beek Auto Racing in the Netherlands while the exhaust was swapped out for a full system from Akrapovic. The result: 520 horsepower and 487 lb-ft of torque. This is routed rearwards by the standard seven-speed DCT, but it has a custom software tune from Def...