Nine-time world champ Valentino Rossi has won an unprecedented sixth Monza Rally after he and co-driver Carlo Cassina finished ahead of factory-backed World Rally Championship stars Thierry Neuville and Andreas Mikkelsen.

Rossi and Cassina copped a 10-second penalty for being underweight ahead of the penultimate stage but went on to eventually win the event by 5.7sec.

Marco Bonanomi finished third ahead of nine-time world MX champ Tony Cairoli.