Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Bentley Bio-Fuel beckons

Bentley finds itself in this ludicrous position. Of course, the current credit problems play a big part in Bentley’s problems, either because buyers need finance to buy their cars or, more likely, the demonising of the sort of cars Bentley makes by the eco-mentalists makes them an uncomfortable buy. So Bentley has come up with a strategy to combat the ‘Planet Killing’ perception many have of its products – Bio-Fuels.

Porsche 959 prototype to cross the block at Barrett-Jackson

When Professor Helmuth Bott arrived at the fledgling Porsche sports-car company in 1952, he was in his late 20s. The young engineer's first assignment was setting up a gearbox test stand for the company's new all-syncromesh Type 519 transaxle. Thirty-one years later, he gave the go-ahead for the development of a car that was to be the ultimate bleeding edge of what Porsche knew about building a rear-engined sports car.

Video: Autoweek thrashes the 2011 Porsche GT2 RS

Join Autoweek senior editor for motorsports Mac Morrison and road test editor Jonathan Wong as they put the 2011 Porsche GT2 RS through the paces at GingerMan Raceway in southwest Michigan. They take a closer look at what makes the car so special, and they get behind the wheel to find out for themselves. We'll bring you the GT2 RS VBox lap later this week, and stay tuned for Lexus LFA track action coming soon.