On January 21 1964, the Mini Cooper S won the Monte Carlo Rally for the first time.
It was the pairing of Northern Ireland's Paddy Hopkirk and his co-driver Henry Liddon that pulled off the big surprise, resisting the supposed superiority of significantly more powerful rivals in their Mini.
Its faultless run over country roads and mountain passes, ice and snow, tight corners and steep gradients laid the foundations for the underdog-turned-giant-slayer to cement itself in both the hearts of the public and the annals of motor sport legend.
Indeed, the classic Mini's dominance of the Monte Carlo Rally continued over the years that followed, with Hopkirk's Finnish team-mates, Timo Mäkinen and Rauno Aaltonen, adding two further overall victories - in 1965 and 1967 - to the British manufacturer's collection.
Now 80-years-old, Hopkirk's eyes still light up when he recalls the driving qualities of his winning car: "Although the Mini was only a little family saloon, technically it had a lot of advantages. Its front-wheel drive and front-mounted transverse engine were a great advantage, and the fact the car was smaller and the roads were ploughed - they were quite narrow - so I suppose that was an advantage.
"We were very lucky - the car was right, everything happened at the right time and came together at the right moment."