Audi S1 Quattro: Irresistible dynamic charm in a sporty package

Audi's S-cars are ubiquitous members of the Four Rings clan: sportier, rortier and certainly quicker versions of their bread and butter counterparts, if not quite as hard-core as the RS models. The only exception has been the A1 range, which has had to do without an S-model – until now. As DEON SCHOEMAN finds out at the Kyalami Grand Prix Circuit, it's been worth the wait.