World championship-winning Formula 1 cars have to be fast, that is obvious. But sometimes that is not enough to get the job done.
Often when a team produces the fastest car, it can be confident of winning the drivers' and constructors' championships. And yet some of the potentially most dominant F1 machines have failed to deliver, particularly in the days when cars were less reliable.
Looking at supertimes gives a good idea of how fast cars are over a given season. This is calculated by converting their fastest lap times over a race weekend (normally set in qualifying) to a percentage, with the outright fastest lap of the weekend expressed as 100%.