BMW is planning to build a next-generation 'green supercar' that it can sell by the end of 2012, according to Autocar. Company insiders described the car as "a puristic two-seater that draws on all the very latest BMW technology and lightweight build processes."

The report said that the car will be a kind of modern day BMW M1, which is what the BMW M1 Homage Concept alluded to earlier this year. The supercar will incorporate various technologies from BMW's Efficient Dynamics program, including direct injection, brake energy regeneration and start-stop, plus an F1-style kinetic energy recovery system and a 3.0-liter twin turbo six cylinder engine, according to the article.