Rolex 24 At Daytona

There has never been a four-door diesel sedan in the Grand-Am series, until now: The blunt, bewinged grille of the Mazda6 GX has blown right through that wall. It's said that racing improves the breed, but usually the breed has gone on sale when the racing begins. One of the unusual aspects of the Mazda6 GX, on the other hand, is that while the diesel won't go on sale to the public until later this year, it will already have tasted racing blood by t

It may not be quite as radical as some of the company's past rotary racers, but the new Mazda6 Skyactiv-D racecar does have a notable powertrain underhood: the automaker's brand-new clean diesel four-cylinder engine.

At this year's Rolex 24 at Daytona, Brumos Racing driver Leh Keen wore a camera strapped to his chest. But he didn't just wear it for the race, he wore it for the entire event, from the plane ride in to the post-race press conference.

2010 Rolex 24 at Daytona - Click above for high-res image gallery