On the eve of the first pre-season test ahead of the new F1 season, Scuderia Toro Rosso have pulled the covers off their 2014 F1 challenger, the STR9, in the pitlane at the Circuito de Jerez. The new car, which will be driven by Jean Eric-Vergne and new recruit Daniil Kvyat, is the first to be fully designed and built…