David Coulthard says he was blown away by the performance of this year's title-winning Mercedes turbo V6 engine. Recently at Silverstone, the former McLaren and Red Bull driver tried this year's controversial 'power unit' technology for the first time with a turn at the wheel of the 2014 Williams. The BBC commentator told Germany's Auto Motor und Sport: "The power and torque of the engine is incredible. "You hit the gas on the straight and start changing gear every 50 metres," said the 43-year-old, who contested almost 250 grands prix through the sport's fabled V10 and V8 eras. "The world starts flying past you so fast that you feel like you're in Star Wars,"...
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