The 2004 Toronto Grand Prix of Mosport was an American Le Mans Series professional sports car race held at Mosport International Raceway near Bowmanville, Ontario, Canada from August 6 to the 8, 2004. It was the sixth race of the 2004 American Le Mans Series season and the 19th IMSA sanctioned sports car race held at the facility.
The LMP1 and overall race victory went to Dyson Racing drivers Butch Leitzinger and James Weaver for their first victory of the season in the MG-Lola EX257. After winning the previous four rounds, ADT Champion Racing drivers Marco Werner and JJ Lehto finished second in the Audi R8, with the second Dyson Racing entry of Chris Dyson and Andy Wallace finishing third.
The GTS class win went to Corvette Racing's Oliver Gavin and Olivier Beretta in the Chevrolet Corvette C5-R, with Intersport Racing's Clint Field and Robin Liddell taking the LMP2 victory in the Lola B2K/40. Alex Job Racing drivers Jörg Bergmeister and Timo Bernhard won the GT class in a Porsche 911 GT3-RSR. [1]
The race was broadcast across North America on CBS Sports with Ralph Sheheen and Bill Adam calling the race.
Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).
| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
|---|---|---|---|---|---|---|---|
| Engine | |||||||
| 1 | LMP1 | 16 |  Dyson Racing | Butch Leitzinger  James Weaver | MG-Lola EX257 | G | 137 |
| MG (AER) XP20 2.0L Turbo I4 | |||||||
| 2 | LMP1 | 38 | ADT Champion Racing |  Marco Werner  JJ Lehto | Audi R8 | M | 137 |
| Audi 3.6L Turbo V8 | |||||||
| 3 | LMP1 | 20 | Dyson Racing | Chris Dyson Andy Wallace | MG-Lola EX257 | G | 135 |
| MG (AER) XP20 2.0L Turbo I4 | |||||||
| 4 | GTS | 4 | Corvette Racing | Oliver Gavin  Olivier Beretta | Chevrolet Corvette C5-R | M | 129 |
| Chevrolet 7.0L V8 | |||||||
| 5 | GTS | 3 | Corvette Racing |  Ron Fellows Johnny O'Connell | Chevrolet Corvette C5-R | M | 129 |
| Chevrolet 7.0L V8 | |||||||
| 6 | LMP2 | 30 | Intersport Racing | Clint Field Robin Liddell | Lola B2K/40 | P | 127 |
| Judd KV675 3.4L V8 | |||||||
| 7 | GTS | 63 | ACEMCO Motorsports | Terry Borcheller Johnny Mowlem | Saleen S7-R | P | 125 |
| Ford 7.0L V8 | |||||||
| 8 | GT | 23 | Alex Job Racing | Jörg Bergmeister Timo Bernhard | Porsche 911 GT3-RSR | M | 120 |
| Porsche 3.6L Flat-6 | |||||||
| 9 | GT | 31 | White Lightning Racing | David Murry Craig Stanton | Porsche 911 GT3-RSR | M | 120 |
| Porsche 3.6L Flat-6 | |||||||
| 10 | GT | 45 | Flying Lizard Motorsports | Johannes van Overbeek Darren Law | Porsche 911 GT3-RSR | M | 120 |
| Porsche 3.6L Flat-6 | |||||||
| 11 | GT | 35 | Risi Competizione | Anthony Lazzaro Ralf Kelleners | Ferrari 360 Modena GTC | P | 119 |
| Ferrari 3.6L V8 | |||||||
| 12 | GT | 66 | New Century - The Racer's Group | Patrick Long Cort Wagner | Porsche 911 GT3-RSR | M | 119 |
| Porsche 3.6L Flat-6 | |||||||
| 13 | GT | 44 | Flying Lizard Motorsports | Lonnie Pechnik Seth Neiman | Porsche 911 GT3-RSR | M | 118 |
| Porsche 3.6L Flat-6 | |||||||
| 14 | GT | 79 | J-3 Racing | Justin Jackson Tim Sugden | Porsche 911 GT3-RSR | M | 117 |
| Porsche 3.6L Flat-6 | |||||||
| 15 | GT | 50 | Panoz Motor Sports | Gunnar Jeannette  David Saelens | Panoz Esperante GT-LM | P | 116 |
| Ford (Elan) 5.0L V8 | |||||||
| 16 | GT | 43 | BAM! | Leo Hindery Sascha Maassen | Porsche 911 GT3-RSR | M | 116 |
| Porsche 3.6L Flat-6 | |||||||
| 17 | GTS | 71 | Carsport America | Tom Weickardt Jean-Philippe Belloc | Dodge Viper GTS-R | P | 116 |
| Dodge 8.0L V10 | |||||||
| 18 | GT | 60 | P.K. Sport | Tony Burgess Piers Masarati | Porsche 911 GT3-RS | P | 116 |
| Porsche 3.6L Flat-6 | |||||||
| 19 | LMP2 | 10 | Miracle Motorsports | Ian James James Gue John Macaluso | Lola B2K/40 | Y | 111 |
| Nissan (AER) 3.0L V6 | |||||||
| 20 | GT | 24 | Alex Job Racing | Marc Lieb Romain Dumas | Porsche 911 GT3-RSR | M | 96 |
| Porsche 3.6L Flat-6 | |||||||
| 21 DNF | LMP1 | 37 | Intersport Racing | Jon Field Niclas Jönsson | Lola B01/60 | G | 17 |
| Judd KV675 3.4L V8 | |||||||
| FINAL RACE RESULTS [2] | |||||||
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