Bulgarian tuner Prospeed has built a replica of Audi's fabled S1 World Rally Championship mauler ... Helping in its bid for authenticity is genuine Group B horsepower: 800 ponies, to be exact.

Audi's legendary Sport Quattro S1 was a powerhouse of international rally in the Group B era of the 1980s, but due to its short wheelbase it was always a bit difficult to drive and resulted in lots of ...

Every gearhead should know about the Audi Sport Quattro S1. It was a Group B World Rally Championship legend back in the early '80s, along with other incredible competitors like the Ford RS200 ...

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It's certainly more interactive than the dual-clutch option you'd expect of a performance Audi, and therefore something to be celebrated. Like many Volkswagen Group products, a slightly over ...