LONDON (Reuters) - Formula One supremo Bernie Ecclestone has dismissed the sport's new V6 turbo era as "completely unnecessary nonsense" after Renault engine woes sidelined champions Red Bull in pre-season testing.
Quadruple champion Sebastian Vettel's team completed just 14 laps in the first three days in Jerez after recurring problems. Other Renault-powered teams have also struggled to do much mileage.
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