In the Safari Rally, a rotor arm in Mouton's Quattro failed and caused the turbo to break down as well. She retired after falling victim to the team's ranking order; as the repairs were expected to take too long, Gumpert ordered championship leader Blomqvist's Quattro to be fixed by using Mouton's sister car as spares. Her debut in the new Sport Quattro at the Acropolis Rally ended with engine overheating problems. In the 1000 Lakes, Mouton placed ninth after the short first day. She later crashed and continued without a windscreen, but the damage to her Quattro could not be repaired in service. Mouton retired and left Finland pointless for the fourth year in a row. In late October, she signed a contract extension with Audi. At the RAC Rally, a slight mistake led to a puncture and Mouton dropped from third to fifth. She went on to narrowly lose the final podium spot to Toyota's Per Eklund. Mouton's results placed her 12th in the drivers' world championship, a point behind Röhrl. Outside the WRC, Mouton debuted in the Pikes Peak International Hill Climb in the United States, driving an Audi Sport Quattro together with her usual co-driver Fabrizia Pons. After her main opponent Martin Schanche got hampered by a flat right front tyre she won the open rally category (now known as "unlimited") in a record time and placed second overall, leaving behind several specialised V8 single-seaters that had normally dominated the race.