Got this from motor authority:
Late last year a high ranking insider revealed that BMW was working on a “green” super-sports car based along the lines of the M1 Homage concept. BMW development board member Dr Klaus Draeger also recently revealed that the company was planning to unveil a sustainable sports car concept at the upcoming Frankfurt event.
The concept is expected pack the latest in BMW EfficientDynamics technology, but in addition to showcasing powertrain advancements it will also feature sustainable design and material elements.
According to previous reports, BMW is studying the viability of the project, with an eye to eventually building a two-seater sports car that showcases all of firm’s most sophisticated environmental technology. A limited production run would be timed for release at the end of 2012, giving cars like the top-selling Audi R8 and upcoming Mercedes Benz SLS AMG Gullwing some healthy competition.
The rest of the article is here: