1968 Formula One season on the scene when Ken Tyrrell entered his own team using a Cosworth-powered car built by French aeronautics company Matra and driven by ex-BRM driver Jackie Stewart. Unsurprisingly the season-opening 1968 South African Grand Prix confirmed Lotus' superiority, with Jim Clark and Graham Hill finishing 1–2. It would be Clark's last win. On 7 April 1968 Clark, one of the most successful and popular drivers of all time, was killed at Hockenheim in a non-championship Formula Two event. The Scotsman had gone off the track caused by what was believed to be a deflating rear tire; 90% of the Hockenheim
Australian Formula 1 as Formula 5000 cars) and those fitted with less restricted unsupercharged engines of eight cylinders or less and up to 2000 cc in capacity. The smaller engine option was discontinued after 1976. The main engines used were Chevrolet and Repco-Holden V8's, though occasionally a Ford V8 was seen in action without success. In March 1979 Formula Pacific cars (using 1.6-litre production-based four-cylinder engines) became eligible for Australian Formula 1 alongside the existing 5.0-litre cars and 1980 saw the addition of 3.0-litre FIA Formula One cars to the mix. For 1982, Australian Formula 1 was restricted to Formula Pacific cars only.