The 1970 motorsports season featured major competition across multiple disciplines. In NASCAR, Bobby Isaac captured the Grand National championship behind 11 wins, while Pete Hamilton won the Daytona 500. In open-wheel racing, Al Unser claimed the USAC National Championship and the Indianapolis 500. Internationally, Jochen Rindt posthumously won the Formula One World Championship for Lotus. The season highlighted both emerging talent and technical evolution across stock cars, open-wheel, and Grand Prix racing.
