Jody Scheckter wins F1 world title for Ferrari • Patrick Depailler wins Spanish GP for Ligier but then breaks his legs in a handgliding accident • Clay Regazzoni scores Williams' maiden win at Silverstone, as the team goes on to take five of the last seven races • Movie star Paul Newman finishes second at Le Mans behind Klaus Ludwig, Bill and Don Whittington's Kremer Porsche 935 • Richard Petty takes the last of seven NASCAR titles • Rick Mears wins his first Indianapolis 500 • Teams split with USAC and form CART IndyCar Series which is also won by Mears • James Hunt retires from the sport after parking his Wolf during practice for the Monaco Grand Prix • Niki Lauda does the same thing to Brabham in Canada • Jean-Pierre Jabouille scores Renault's first GP win, and the first for a turbo at Dijon, but the race is remembered for Gilles Villeneuve and Rene Arnoux's battle for second place
- Ferrari dominates, with Jody Scheckter and Gilles Villeneuve finishing 1-2 in the championship
- Clay Regazzoni scores Williams' maiden win at Silverstone; the team wins five of the last seven races
- Rick Mears clinches the first of his four Indianapolis 500 victories
- Bjorn Waldegaard won the first World Rally drivers' title by a single point from Hannu Mikkola
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