Acheson reached the goal only in his first race. In 1985 he went as a substitute for Manfred angle Hock, who was killed in an accident during the season. Between 1988 and 1992 he participated every year for changing teams at the 24 - hour race at Le Mans. While he failed to qualify for the main race in three years, Acheson was three times to finish the race on the podium; each 2nd Place: 1989 Mauro Baldi and Gianfranco Brancatelli on Sauber C9 and Masanori Sekiya 1992 and Pierre -Henri Raphanel on Toyota and a third place in 1991 with Bob Wollek and Teo Fabi on Silk Cut Jaguar.
He played his last race in 1996 at the 24 Hours of Daytona, as he indeed was uninjured in a severe crash, in the episode but ended his career.