The 1978 World Sportscar Championship season was the 26th season of FIA World Sportscar Championship motor racing. It featured the 1978 World Championship for Makes, which was contested from 4 February to 3 September 1978 over an eight race series. The 24 Hours of Daytona and the 1000 km Nürburgring were part of the inaugural FIA World Challenge for Endurance Drivers.