The 1984 Formula 1 season was the 38th season of FIA Formula One motor racing. It featured a fierce intra-team battle at McLaren between Niki Lauda and Alain Prost, culminating in Lauda winning his third and final Drivers' Championship by just half a point. McLaren-TAG Porsche dominated the Constructors' Championship, winning 12 of the 16 races.
The 1984 Formula 1 season began at the Jacarepaguá circuit in Rio de Janeiro, where Alain Prost won the race for McLaren, marking the start of the team's dominant season.
Ayrton Senna nearly won his first race in a wet Monaco Grand Prix, rapidly catching leader Alain Prost before race director Jacky Ickx controversially red-flagged the race, giving Prost the win and awarding half points.
The inaugural Dallas Grand Prix was held in extreme heat, causing the temporary street circuit's surface to break apart. Keke Rosberg won the race for Williams-Honda, while Nigel Mansell collapsed from heat exhaustion after pushing his car over the finish line.
Alain Prost won the British Grand Prix at Brands Hatch, while his teammate Niki Lauda was disqualified after his McLaren was pushed over the white line in the pit lane during the race.
Alain Prost won the Italian Grand Prix at Monza, significantly closing the championship gap to teammate Niki Lauda as the season approached its climax.
In the season finale at Estoril, Niki Lauda finished second behind Alain Prost to secure his third World Championship by the narrowest margin in Formula 1 history, just half a point.
