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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.

Cars for College: AutoWeek's list of the best rides for campus cruising

High school seniors across the country have long since moved their graduation tassels from right to left. And before they start buying mini-fridges and extra-long bedsheets for their dorm rooms, prospective undergraduates need an affordable, safe and mpg-friendly ride that will leave Mom and Dad stress-free during trips to and from school. Here is a look at AutoWeek's top cars in which to send a kid off to college.

Sustrans backs City's 20mph plan

THE CHARITY Sustrans, which encourages people to travel by foot, bike or public transport, has welcomed plans to cut speed limits within the City of London to 20mph. The City of London's Court of Common Council approved the plan to reduce the speed limit to 20mph in the City as part of its Road Danger Reduction Plan. It is argued that the plan will reduce casualties by almost 10% while adding only a minute to journey times.