In 1931 he moved to Bellevue Garage located in Wandsworth which was run by Kenneth Evans and his family.

During World War II he headed Rotol, a division of Rolls-Royce, distributing aircraft propellers.

In 1951 David Murray, then an Edinburgh accountant, persuaded Wilkie to become partners with him in a garage in Merchiston Mews.

The 1953 campaign brought about more consistent results including a 2nd place at Spa-Francorchamps with the C-type Jaguars.

This peak of success wasn't reached again with Ecurie Ecosse and so Wilkie moved on to Bourne and BRM working with the likes of Graham Hill and the Jackie Stewart Wilkie retired from BRM in 1972 to carry out other projects he wished to pursue.