His automotive career began in 1973 with slalom race and led him to hill climb, where he became 1981 German champions. After racing in the German Racing Championship was his debut in the German Touring Car Championship in 1985. Asch Until 1994, drove a Mercedes without exception. In 1995 the transition to the Super Tourenwagen Cup.
In addition to touring car Asch also drove successfully in other disciplines. He won the German Porsche 944 Turbo Cup in 1987, 1988 and 1989, as well as the Porsche Carrera Cup Germany 1991.
With more than 50 years, he returned to the Porsche Carrera Cup, where he ran until 2003. A year later, he drew a few races a Ford in the European Touring Car Championship, now the World Touring Car Championship.
Since 1999, he drives a Nissan Skyline GT -R of the Japanese team of Falken Tyres in the 24 -hour race on the Nürburgring.
2000 Asch went for a race in the German Touring Car Masters for Audi Team Abt Sportsline at the start.
His ties to racing cars shows Roland Asch also occasionally in a representative manner, for example as a pilot of racing taxis on the occasion of the international mountain race Arosa ClassicCar, 2012.