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Ruf Stormster concept (2009): the electric Porsche Cayenne

Ruf might be a tiny German tuner, but it’s just unveiled the first ever electric Cayenne. Called the Stormster it's Ruf's second battery-powered Porsche, uses the same motor as the company's electric 911, weighs close to 2.7 tonnes and hits 62mph in ten seconds. No at all – in fact, earlier this week Ruf took its 676bhp GT2 to 229mph at the Nardo test track in southern Italy.

B.R.A.K.E.S. teen driving school's western debut a smash hit

All four classes of the teen driving school B.R.A.K.E.S. were packed last weekend as 160 teens age 16 to 18 from all over Southern California took part in the school's West Coast debut. "It's a lot more intense than I expected," said 18-year-old Dylan Wright, who spent part of the morning flinging a Dodge Avenger sideways on a wetted-down skidpad.

Designing the sound of tomorrow's electric cars

By 2019, the European parliament has ordered that all new electric cars sold in the EU must be fitted with a device that emits noise to make them more audible to pedestrians. With safety legislation in America and elsewhere set to follow, this presents an opportunity to completely rethink the sound electric cars make. It's a chance to take it beyond a warning sound by considering something that harmonizes with its surroundings.