The Lancia Delta S4 is one of the most legendary and fearsome machines of the Group B era — a true masterpiece of engineering and performance. Beneath its lightweight body, it housed a 1.8-liter twincharged engine combining both a supercharger and a turbocharger, delivering up to 500 hp through an advanced all-wheel-drive system. This revolutionary setup gave the S4 instant throttle response, brutal acceleration, and extraordinary grip on any surface.
Making its debut at the 1985 RAC Rally, the S4 immediately announced its arrival by taking victory with Henri Toivonen behind the wheel. Throughout the 1986 World Rally Championship season, it became one of the most feared competitors, winning multiple events and pushing technological limits further than ever before. However, its story is inseparable from the tragedy of Group B — following the fatal accident of Toivonen and his co-driver Sergio Cresto at the Tour de Corse 1986, the FIA banned Group B cars for 1987.
Today, the Delta S4 stands as a symbol of rallying’s wildest era — a car that combined cutting-edge technology, breathtaking speed, and unforgettable drama. It remains one of the most iconic machines ever built for the world’s rally stages.
