Mouton's WRC outings were her home events: Monte Carlo Rally and Tour de Corse. In Monte Carlo, she was running in eighth place after eleven stages, but soon retired with oil pump problems. For the Tour de Corse in May, Mouton was given the second evolution of the car. She quickly showed good pace and held third place behind Lancia's Henri Toivonen and teammate Bruno Saby. However, she ran into gearbox trouble on the tenth stage and was forced to retire. During the next day, Toivonen and his co-driver Sergio Cresto crashed out from the lead and died in their seats. Mouton was still in Corsica and remarked to her boyfriend that "if they stop the Group B now, it will be the end for me." Within days, FISA announced new regulations and banned the Group B supercars for the following year.