The 1985 Austrian Grand Prix was a Formula One motor race held at Österreichring on 18 August 1985. It was the tenth race of the 1985 Formula One World Championship. It was the 25th Austrian Grand Prix and the 24th to be held at Österreichring. The race was run over 52 laps of the circuit for a total race distance of . The race was won by Frenchman Alain Prost, driving a McLaren-TAG, after he started from pole position. Prost took his fourth victory of the season by 30 seconds from Brazilian Ayrton Senna in a Lotus-Renault, with Italian Michele Alboreto third in a Ferrari. With the win, Prost moved level on points with Alboreto at the top of the Drivers' Championship. This was the last F1 race until the start of in which a car with a naturally aspirated engine was entered, Martin Brundle failing to qualify his Cosworth-powered Tyrrell. Race summary Missing from the grid was RAM driver Manfred Winkelhock who had been killed in a sportscar race in Canada just a week before. His place was taken in the team by Kenny Acheson for his first Formula One race since the 1983 South African Grand Prix. A second Toleman was driven by Piercarlo Ghinzani. Before Saturday morning practice triple and defending World Champion (and 1984 Austrian Grand Prix winner) Niki Lauda, flanked by a very unhappy McLaren team boss Ron Dennis, announced to the media that he would be retiring for good from Formula One following the season ending to concentrate on running his airline Lauda Air. Dennis was reportedly unhappy as he had paid Lauda a considerable amount of money to make his F1 comeback in and he had unsuccessfully tried to get Lauda to continue racing into the season. A now relaxed Lauda gave his home fans something to cheer about when he qualified a season-high third. Lauda's team mate Alain Prost captured pole position, averaging 155.478 mph (250.219 km/h), followed by Nigel Mansell (Williams-Honda), Lauda, Keke Rosberg (Williams) and Nelson Piquet (Brabham-BMW). After a troubled qualifying, Ayrton Senna only qualified 14th on the grid in his Lotus-Renault. The race was restarted after one lap (with Niki Lauda having made a great start from third on the grid to lead Prost as the race was stopped). Mansell had got away very slowly in his Williams, but behind him Teo Fabi in the Toleman-Hart barely moved.