Built in 1969 at the Trojan workshops (as McLarens were) it was dispatched by them on 14 Jun 1969 to Sir Nick Williamson (Mortimer, Berkshire), and raced at the International hillclimbs at St Ursanne-Les Rangiers and Ollon-Villars before making its British debut at Prescott in early September.
Chassis #300-08 then won all three UK outings in late 1969.
The car was then rebuilt at the factory to M10B specification for the 1970 British Hill Climb Championship.
Williamson won four championship rounds and took the championship by the narrowest of margins after his rival David Hepworth lost his clutch at the last event.
The car was sold and passed through many owners and many race tracks including some in the USA.
In the mid 2000’s, UK-based Kiwi Grant Clearwater bought the car raced in the Derek Bell Trophy race at Brands Hatch in 2008.
Clearwater ran the car at the Tasman Revival series race at Hampton Downs January 2010, and again at the Gulf Oil Howden Ganley Festival at Hampton Downs in January 2015.
