Who was the best driver of 2013? Few would argue that it was Sebastian Vettel, a fact reflected in his average rating being 0.5 higher than any other driver.
During the course of the season, AUTOSPORT rated each driver's weekend performance out of 10 based upon a range of criteria. This took into account progress in practice, qualifying and the race relative to realistic expectations, as well as mistakes and isolating those days when drivers really excelled.
The perfect 10 was awarded rarely to recognise not just statistically excellent performances, but days on which a driver extracted the maximum out of the machinery in spectacular style. Only 15 were awarded during the season (so only for three per cent of races weekends), with Sebastian Vettel earning the most.