After running non-championship Grand Prix under sportscar rules for six years at Mosport Park, the Canadian Grand Prix had its bid to become a World Championship event in 1967 accepted.
Jackie Stewart had relatively few complaints about the opening to the 1970 Formula 1 season. Having claimed his first title several months previously, the Scot's defence began well with a podium under South Africa's hot, dry sun in Kyalami.
Unlike the current Grand Prix season, the 1969 World Championship proved to be a somewhat more predictable affair.
It's hard to imagine in today's professional era but until the eighties it was common practice in minor Formula One countries for local drivers to bring some local colour to the grid, joining the regulars for a one-off in their privately entered machines. One such privateer was John Love.
Before the 1965 French Grand Prix, Lotus driver Jim Clark was quietly confident. After three rounds, the legendary Scot had a three-point advantage over BRM's Graham Hill when they arrived at Clermont-Ferrand. With skill and smoothness a premium at the French circuit, Clark possessed an advantage that often superseded the superb engineering of his nimble Lotus 33. In the race, he would made it look so easy.
An unseasonal cold spell broken, a sodden and wintry base is revealed, as the snow in Ireland and the UK peels away feebly. Motorsport tends not to happen in these conditions.
When Karl Jochen Rindt's Lotus 72 ploughed head-on into the guardrail at Monza's fast, sweeping Parabolica, motor racing was robbed of one of its most outstanding talents. At 28, the exuberant Austrian was to become Formula 1's first - and thankfully only - posthumous world Champion.