Report: BMW Builds One-Off M5 CSL With 580-hp
To celebrate 25 years since the creation of the M5, BMW has built a light weight, even higher performance version of the current E60 super saloon. But don’t get too excited, BMW only built one and there are no plans to bring this model to production.
BMW M division R&D boss Albert Biermann described the car to the U.K.’s AutoCar as, “the M5 CSL we never built.”
The details of this M5 CSL are exciting, with a larger V10 engine that has been stroked to 5.5-liters. With a carbon fiber manifold and larger airboxes, as well as a secondary oil cooler, the car makes 580-hp and 400 ft-lbs of torque. Putting that power to the ground is a stronger version of the seven-speed dual clutch gearbox used in the current M3.
A good deal of weight savings was also part of the plan, with a carbon fiber roof, carbon fiber front seats and the absence of any rear seats.
All the modifications create an impressive package and Biermnan says the M5 lapped the Nürburgring in under 8 minutes, taking at least 20 seconds off the standard M5’s time.