The rumormongers at AutoZeitung are reporting that BMW plans to unveil a stripped-out, track-ready M3 at the 2009 Frankfurt Motor Show. The E90-based M3 CSL will use many of the same tricks BMW employed on the E46 model in an effort to shave the coupe's curb weight. Luxuries like air conditioning, stereo and navigation won't be included, while the hood, bumper, trunk and fenders will all be swapped out in favor of carbon fiber pieces.
In addition to keeping the pounds down, BMW will reportedly boost the output of the M3 CSL by an additional 50 horsepower, for a total of 470 bhp. That should allow the E90 CSL run to 60 in around four seconds, on its way to a top speed of around 185 mph.
Production of the 2010 BMW M3 CSL will be limited to 100 units and pricing is estimated at 90,000 euro, or just over $140k.