In 1983 Boutsen drove in the European Touring Car Championship and in World Sportscar races, where he won the very first Group C race, the Monza 1000 km with Bob Wollek driving a Porsche 956.
En 1983 Boutsen participou en carreiras do Campionato Europeo de Turismos e do Mundial Sportscar, onde gañou a primeira carreira do grupo C, os 1000 quilómetros de Monza con Bob Wollek pilotando un Porsche 956.