Germany's BMW AG, which unveiled its all-new M5 sedan last week at the Geneva auto show,is already working on a companion model -- a high-performance derivative of the new 6-series coupe that will be called M6.
The M6 nameplate, which hasn't been used since the mid-1990s, will return sometime in calendar year 2005. The new car, which will be marketed as a 2006 model, is expected to share the new 5.5-liter V-10 with the M5 sedan.
The nearest competitors to the M6 will be the Aston Martin DB9, the Porsche 911 Carrera Turbo and the Mercedes-Benz SL 55 AMG.
