More than 200 classics are expected for the Wisbech and District Historic Vehicle Club Road Run on 11 August.
Open to all road-legal machines more than 25-years old, the tour attracts cars and motorbikes.
Commercial, military and emergency vehicles are also welcome for the cavalcade that will follow an 80-mile route through Cambridgeshire to Peterborough.
The event kicks off from Somers Road Car Park, pausing for a static display at Perkins Engines before returning to its market-town starting place for a show and prize-giving.
The event is in its 21st year and has so far raised more than £10,000 for charities including the East Anglian Air Ambulance.
Anyone wishing to participate can contact the club via its website.