The 1985 Budweiser GT was the sixth round of the 1985 World Endurance Championship. Several teams from the Camel GT Championship also participated, under the GTP, GTO, and GTU classes. It took place at Mosport Park, Canada on August 11, 1985.

In the early portions of the race, Manfred Winkelhock was driving the Kremer Racing Porsche 962C after taking over from teammate Marc Surer. At the beginning of the car's 69th lap, Winkelhock's Porsche went off course during the long downhill Turn 2. The car hit the concrete barrier at the bottom of the hill head-on. Caution came out immediately and lasted for 56 minutes as safety crews attempted to extract Winkelhock from the wreckage.

Winkelhock was flown by medical helicopter to Sunnybrook Medical Centre near Toronto suffering from severe head trauma while the race resumed. Winkelhock died the following day after failing to recover from surgery.^[1]

Class winners in bold. Cars failing to complete 75% of the winner's distance marked as Not Classified (NC).

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
					Engine
1	C1	2	Rothmans Porsche	Hans-Joachim Stuck Derek Bell	Porsche 962C	D	253
					Porsche Type-935 2.6 L Turbo Flat-6
2	C1	1	Rothmans Porsche	Jochen Mass Jacky Ickx	Porsche 962C	D	253
					Porsche Type-935 2.6 L Turbo Flat-6
3	C1	52	TWR Jaguar	Jean-Louis Schlesser Mike Thackwell Martin Brundle	Jaguar XJR-6	D	234
					Jaguar 6.2 L V12
4	C1	11	Porsche Kremer Racing	Ludwig Heimrath Sr. Ludwig Heimrath, Jr. Kees Kroesemeijer	Porsche 956	G	234
					Porsche Type-935 2.6 L Turbo Flat-6
5	C2	70	Spice Engineering	Gordon Spice Ray Bellm	Spice-Tiga GC85	A	231
					Ford Cosworth DFL 3.3 L V8
6	C2	74	Gebhardt Motorsport	Frank Jelinski John Graham	Gebhardt JC853	A	225
					Ford Cosworth DFV 3.0 L V8
7	GTP	18	Bieri Racing Fomfor Racing	"Fomfor" Uli Bieri Matt Gysler	Sauber C7	G	211
					Chevrolet 6.0 L V8
8	C2	88	Ark Racing	David Andrews Max Payne	Ceekar 83J	A	203
					Ford Cosworth BDX 2.0 L I4
9	GTO	165	Gerry English	Gerry English Jerry Thompson	Chevrolet Camaro	H	199
					Chevrolet 6.0 L V8
10	GTU	154	Zwiren Racing	Steve Zwiren Peter Dawe Robert Peters	Mazda RX-7	H	184
					Mazda 13B 1.3 L 2-Rotor
11 DSQ†	C2	80	Carma F.F.	Carlo Facetti Martino Finotto Jean-Pierre Frey	Alba AR6	A	218
					Carma FF 1.9 L Turbo I4
12 NC	C2	82	Grifo Autoracing	Pasquale Barberio Maurizio Gellini	Alba AR3	D	157
					Ford Cosworth DFL 3.3 L V8
13 NC	C1	34	Cosmik Racing	Christian Danner Costas Los Mikael Nabrink	March 84G	Y	148
					Porsche Type-956 2.6 L Turbo Flat-6
14 NC	C2	98	Roy Baker Promotions	Joe DeMarco Chuck Grantham	Tiga GC285	A	146
					Ford Cosworth BDT 1.8 L Turbo I4
15 DNF	GTO	153	No Team Name	Rudy Bartling Fritz Hochreuter	Porsche Carrera RSR	?	125
					Porsche 3.0 L Flat-6
16 DNF	GTO	139	R & H Racing	Rainer Brezinka Jack Burnett John Centano	Porsche Carrera RSR	?	103
					Porsche 3.0 L Flat-6
17 DNF	C1	10	Porsche Kremer Racing	Manfred Winkelhock Marc Surer	Porsche 962C	G	69
					Porsche Type-935 2.6 L Turbo Flat-6
18 DNF	C2	100	John Barlett Racing	Stanley Dickens Robin Smith Max Cohen-Olivar	Chevron B62	A	27
					Ford Cosworth DFL 3.3 L V8
19 DNF	C1	51	TWR Jaguar	Martin Brundle Mike Thackwell	Jaguar XJR-6	D	12
					Jaguar 6.2 L V12

† - #80 Carma F.F. was disqualified after completing the final lap of the race too slowly.

• Pole Position - #2 Rothmans Porsche - 1:09.775
• Fastest Lap - #2 Rothmans Porsche - 1:12.915
• Average Speed - 168.886 km/h

• 1985 Mosport 1000 Race Highlights (YouTube)