The Renault RE20 was a Formula One car raced by the Renault team in the 1980 season. The car was designed by Francois Castaing and Michel Tétu and designed using Ground effectaerodynamics. The car was powered by the 1.5L turbocharged Renault Gordini EF1 engine, which by 1981 was producing a reported 520 bhp (388 kW; 527 PS). This was roughly 50 more than the 3.0L Cosworth DFVV8 still in wide use at the time in Formula One, though Renault's power did lag behind the new 560 bhp (418 kW; 568 PS) turbocharged engine being used by Ferrari. In keeping with everything French on the car, the tyres used by Renault were Michelin.
The driving lineup for the all French team was made up at the time entirely of French drivers. Driving the RE20 in 1980 were Jean-Pierre Jabouille and René Arnoux, while in 1981 Arnoux continued with the team but Jabouille was replaced by a young Alain Prost who had made his Formula One debut in 1980 for McLaren.