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LeMans winner Johnny O'Connell answers your driving questions

The guy's been racing professionally since 1987. He's won at LeMans four times. He's used to success, but this week he's an instructor at Bondurant, trying to make a halfway decent driver out of your humble editor.

Video: Jan Kaul explains Mercedes-Benz A-Class' interior

Mercedes-Benz has released a video exploring the interior of its new A-Class featuring the designer who headed the project. Jan Kaul explains in the video how the inspiration behind the interior was the subject of aviation, the same inspiration that produced the Concept A-Class show car. "The theme running through the design of the A-Class was definitely ‘less is more,'" says Kaul.

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.