In 1966, Mini Coopers took 1st, 2nd, and 3rd in the famed Monte Carlo Rallye. However the French did not want that to stand and wrongly disqualified the BMC team, putting a Frenchman on the winners stand. Even he refused the prize because of the injustice.
It's not historically accurate, as i do not believe that the cars were this close at any time during the race. It is a homage after all.