Ranking the Top 5 Pre-Season Testing Setbacks

It’s no exaggeration to say that Red Bull Racing endured a nightmare four days of testing at Jerez last week. The new engine regulations caused no shortage of headaches for the Renault engineers with battery and overheating problems restricting Sebastian Vettel and Daniel Ricciardo to a paltry 21 laps between them. But if you thought Red Bull had problems leading up to the start of the new season, spare a thought for these other unfortunate teams.Begin Slideshow...

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