Sebastian Vettel Q&A: Even limited running was important

Red Bull's Sebastian Vettel has won the last three races in Singapore, but his hopes of a fourth successive win took a dive on Friday when his RB10 developed an engine problem at the end of FP1.

The world champion team managed to put a new powerplant into the German's car in double-quick time, but even so, he was forced to sit out the majority of FP2, only managing a handful of laps at the tail end of the session. But as Vettel explains, those few minutes of running could prove crucial in the long run