The 2003 Grand Am Cup season consisted of eleven race weekends.
The championship kicked off in January at Daytona International Speedway, which was followed two months later by an event at Homestead-Miami Speedway.
Beginning in May, the teams crisscrossed the United States, making a visit to Phoenix, Arizona and then back to the east coast for a stop at
Barber Motorsport Park in Alabama. The championship made their final west coast swing of the year to Fontana, California.
Round six was held at Watkins Glen International, which was followed by the Mid-Ohio Sports Car Course.
Next on the schedule was a visit to Canada for races at Mosport International Raceway and Le Circuit Mont Tremblant.
The penultimate race weekend was held at Virginia International Raceway with the finale taking place at Daytona.
Most races were 3-hours in length and were scheduled as a support event for the Rolex Sports Car series. Mosport was the only weekend when the Grand Am Cup series competed without the Rolex championship. The cars racing in the series are relatively unchanged from their road-going versions – modifications are mandated mainly for safety – roll cages, window nets, etc. They also used spec DOT-approved tires produced by Hoosier. Based on performance potential, the cars were divided into one of four groups:
With the exception of Phoenix, Barber, Mid-Ohio and Watkins Glen, these four classes competed on the track at the same time. At Watkins Glen International, the Grand Sport and Sport Touring categories competed in separate 250-mile races (with a 3-hour limit) around the eleven-turn 3.337-mile road course. Sport Touring teams would compete late Friday afternoon while the Grand Sport contest was the last event on Saturday’s schedule. |
POS. | CLASS | DRIVERS | CAR | ENTRANT | LAPS |
---|---|---|---|---|---|
1 | GS I | Levitas / Pobst | Porsche GT3 Cup | TPC Racing | 64 |
2 | GS I | Dyson / Law | Porsche GT3 Cup | G&W Motorsports | 64 |
3 | GS I | Lally / Schrom | Porsche GT3 Cup | TPC Racing | 64 |
4 | GS I | Julien / Dumoulin | Porsche GT3 Cup | Doncaster Racing | 64 |
5 | GS I | Davis / Cawley | Porsche GT3 Cup | Foxhill Racing | 64 |
6 | GS I | Wellman / Tremblay | Porsche GT3 Cup | SpeedSource | 63 |
7 | GS I | Weinberg / Altenburg | Chevrolet Corvette | Powell Motorsport | 63 |
8 | GS II | Shanaman / Baughman | Pontiac Firebird | Baughman Racing | 63 |
9 | GS I | Mears Jr / Haskell / Lewis | Porsche GT3 Cup | SpeedSource | 63 |
10 | GS II | Nonnamaker / Nonnamaker | Porsche 911 | Planet Earth Motorsport | 63 |
11 | GS II | Ward / Del Vecchio | Pontiac Firebird | Baughman Racing | 63 |
12 | GS II | Beaver / Smith | Porsche 996 | TPC Racing | 63 |
13 | GS II | Barber / Borcheller | BMW M3 | Bell Motorsports | 62 |
14 | GS II | Assentato / Longhi | Mustang Cobra R | TF Racing | 62 |
15 | GS I | Powell / Goad | Chevrolet Corvette | Powell Motorsport | 62 |
16 | GS II | Schuitemaker / Zacharias | Nissan 350Z | Schuitemaker Motorpsorts | 62 |
17 | GS II | Seafuse / Seafuse | Mustang Cobra R | JBS Motorsports | 62 |
18 | GS II | DeFontes / Brown | Mustang Cobra R | Frederick Motorsports | 61 |
19 | GS I | Lynn / France | Porsche GT3 Cup | dds Racing | 61 |
20 | GS II | Nonnamaker / Nonnamaker | Porsche 911 | Planet Earth Motorsport | 61 |
21 | GS II | Masessa / Prilika | Porsche 993 | G&W Motorsports | 61 |
22 | GS II | Abello / Tremblay / Schlesinger | Porsche 911 | SpeedSource | 60 |
23 | GS II | Ackley / Snyder | Mustang Cobra SVT | CMA Sports | 58 |
24 | GS II | Knowles / Liebengood | BMW M3 | Competition Preparation | 56 |
25 | GS II | Istook / Zube | Audi S4 | Istook / Aines Motorsport | 48 |
26 | GS II | Rehagen / Martin | Mustang Cobra SVT | Rehagen Racing | 39 |
27 | GS I | Wilson / Merzon / Murry | Porsche GT3 Cup | Case-It Racing | 36 |
28 | GS II | Mountain / Lapcevich | Mustang Cobra R | Frederick Motorsports | 34 |
29 | GS I | Huang / Hall | Chevrolet Corvette | Silverstone Racing Services | 32 |
30 | GS I | Kohler / Smith | Saleen SR | TF Racing | 30 |
31 | GS I | Lacey / Wilkins | Porsche GT3 Cup | Doncaster Racing | 28 |
32 | GS II | Yeakle / Baughman / Shannonman | Pontiac Firebird | Baughman Racing | 19 |
32 | GS II | Jones / Hilliar | Chevrolet Camaro | Precision Motor Werks | 3 |
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