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Mercedes F125 concept (2011) at Frankfurt motor show

Mercedes today unveiled the F125 concept car - a car bearing the three-pointed star's F name to demark it as a tech testbed, and the 125 to mark Merc's 125th anniversary in this four-wheeled business. It's a hydrogen fuel-cell vehicle, and Merc claims a punchy 1000km (620-mile) range. But the scientists here are proud of the cutting edge lithium sulphur batteries, used to store energy created by the fuel-cell.

Why Steve McQueen canceled a $3 million life insurance policy

Spurred by the story of our ride in Steve McQueen's Jaguar XKSS, Richard Haight felt inclined to chime in with the fact that he not only raced motorcycles with (and against) McQueen, but knew him all the way until the King of Cool's death. Haight raced motorcycles on and off for 50 years. McQueen would come and race at the local American Motorcycle Association District 37, usually entering under assumed names like "Harvey Mushman" to enjoy some semblance of normality.

One Lap of the Web: a lap of the 'Ring, a lap of the YouTubes and a lap of the eBays

-- The Porsche 918 achieved a spectacular and borderline-unbelievable time just a few days ago, but here are some less heroic cars lapping the 'Ring, like Peugeot 205s, modern BMWs and a few bikes mixed in for good measure. Check out the classic Heckflosse (fintail) Mercedes-Benz at 2:05. -- Filmmaker Casey Neistat filmed, umm, a pretty good commercial for the new Mercedes-Benz CLA, but it's the making-of video that's even more fun to watch.