My first rally was Riihimäki-ralli on 1966; can't be sure which was the very first car but I remember seeing Leo Kinnunen on Volkswagen 1500 and Timo Mäkinen with Mini.

I was four years old and my uncle was teasing me as Kinnunen with Volkswagen won the rally, beating all Minis - my father was then driving Mini, too. But my point to my uncle was that he was driving Ford Anglia, and Anglias were not competitive at all...