2005 was the fifth consecutive year of the Grand American Road Racing’s Grand Am Cup Series for American and Foreign sports cars and sedans.

There was a significant restructuring of the classes in 2004. The season debuted with a single Grand Sport (GS) and Street Tuner (ST) class.

  • Grand Sport (GS): The quicker of the two classes - the group features the larger displacement engines as well as smaller four-cylinder motors with forced induction systems. The power-plants produce between 350 and 405-horsepower. Minimum weights range between 2,730 – 3,250-pounds, which is dependent on the motor configuration and displacement. The top speed for a Grand Sport car is approximately 160-mph. This class includes cars such as the Acura NSX, Cadillac CTS-V, BMW M3, Pontiac Firebird, Ford Mustang, Nissan 350Z and Porsche 996.
  • Sport Touring (ST): The smaller displacement cars compete in this class in which engines typically produce between 170 and 240-horsepower. The top speed of a Sport Touring car is approximately 135-mph. Popular vehicles found in this group are the Acura RSX-S, Mazda RX-8, BMW Z3, BMW 330i, Chevrolet Cobalt SS and Mini Cooper S.

The cars competing 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 are placed in the Grand Sport or Sport Touring group.

The 2005 season consists of eleven race weekends and starts in February at Daytona International Speedway. New for this year is a Grand Sport only race in Santo Domingo. Returning to the United States, teams travel to California Speedway in early April. At the end of the month, the series competes at Mazda Raceway Laguna Seca. Then there is a trip to the East Coast for race weekends at Watkins Glen International, Mosport International Raceway, Barber Motorsports Park, Trois-Rivieres (which would hold events for the Grand Sport and Sport Touring classes) and Mid-Ohio Sports Car Course. The penultimate rounds take place at Phoenix International Raceway with the Twin 200s. The Grand Sport and Street Tuner teams will compete in separate races. While the finale is held in early October at Virginia International Raceway.

After a one-year absence, the Grand Am Cup series returned to Mosport International Raceway. Teams competed in the Mosport 200 (200-miles / 85-laps subject to a two-and-a-half-hour time limit) around the 2.459-mile ten-turn road course.

Leading the field through Mosport International’s corner one is the pole-sitter, Gunnar Jeannette in the Multimatic Motorsports Ford Mustang GT. Behind Jeannette and running side by side is the Turner Motorsport BMW M3 driven by Justin Marks and the second fastest-qualifier, Spencer Pumpelly driving the Race Prep Motorsports Porsche 996. A total of fifty-four competitors started the event at Mosport.
The Mosport weekend presented some competitors with a scheduling conflict. One such driver was Scott Maxwell, who was entered in the 24 Hours of Le Mans. Filling the seat vacated by Maxwell was Gunnar Jeannette. Jeannette started on the pole and shared the No. 05 Ford Mustang with David Empringham. The pair dominated the race leading 73 of the 82-laps with Empringham crossing the finish line first.
New York state laws prevented the father/son team of Jim and Jamie Holtom from competing together at Watkins Glen. That was not the case at Mosport and the two shared the No. 00 Chevrolet Cobalt SS. Starting on the Sport Touring pole, Jim led the class during his stint. After the driver change, Jamie chased down the Mazda RX-8 of Sylvain Tremblay and passed his him with three laps remaining for the lead and win.
Team owner, John Munson usually performs the qualifying duties for the No. 92 Anchor Racing BMW M3 entry. Other commitments prevented him from being at the track during the session. Munson’s co-driver, James Sofronas, qualified the BMW and put it on the pole. However, the team elected to change its starting driver, which meant Munson would start at the rear of the field. The pair would finish fifteenth in class and overall.
The round six Grand Am Cup Grand Sport podium at Mosport International Raceway. In the center are the winners, Gunnar Jeannette and David Empringham, with his entourage. With Scott Maxwell competing at Le Mans, his driver-partner, Empringham, took sole possession of the points lead. Standing on the left are the runner-up finishers, Anders Hainer and Boris Said. Completing the rostrum are Tommy Milner and James Gue.
The Grand Am Cup series uses split starts with the Sport Touring group receiving the Starter’s flag after the Grand Sport drivers. The field is led through Mosport International Raceway’s corner one by the Georgian Bay Motorsports Chevrolet Cobalt SS driven by the class pole-sitter, Jim Holtom. Behind Holtom is the Cobalt of the other front row starter, Tom Lepper and the category point’s leader, Don Salama.
Anchor Racing entered three BMW M3. Sharing the No. 99 M3 was Anders Hainer and Boris Said. Hainer performed the qualifying duties and was the fifth quickest. He drove the first half of the race and remained in contention. During his stint, Said was able to chase down the leader, David Empringham and challenged him for the top spot. Unable to pass Empringham, Said finished second by a margin of 1.317-seconds.
David Haskell drove the No. 70 SpeedSource Mazda RX-8 and could only manage the ninth quickest time. During the race, the defending Sport Touring champions, Haskell and Sylvain Tremblay, maneuvered their way through the field. Tremblay was in the lead until three laps from the finish when he was passed by the Chevrolet Cobalt SS of Jamie Holtom. Tremblay challenged Holtom, but could not make the pass.
With Scott Maxwell competing at the 24 Hours of Le Mans, Multimatic Motorsports had to juggle their driver line-up and recruited Tommy Milner for this event. Gunnar Jeanette filled the seat vacated by Maxwell and Milner partnered with James Gue. During qualifying, Gue only managed to record the eighth quickest time. The duo moved the car into contention and on the final lap, Milner passed Terry Borcheller for third place.
One of the many local teams participating at Mosport International Raceway was the No. 75 Kensai Racing prepared Acura RSX-S, driven by Aaron Povoledo and Travis Walker. They started forty-sixth overall and thirteenth in the Sport Touring category. During the race, the pair moved up the race order and at the checkered flag, they finished twenty-second overall and third in class for their first Grand Am Cup series podium.
The Grand Am Cup Sport Touring podium for round five at Mosport International Racing. Standing in the center are the father and son team of Jim and Jamie Holtom. This was father, Jim’s second consecutive class victory and moved him into the points lead. On the left side are the defending class champions and runner-ups, Sylvain Tremblay and David Haskell. Rounding out the rostrum are Aaron Povoledo and Travis Walker.

1GSEmpringham / JeannetteFord Mustang GTMultimatic Motorsports82
2GSHainer / Hand / SaidBMW M3Anchor Racing82
3GSGue / MilnerFord Mustang GTMultimatic Motorsports82
4GSMarks / BorchellerBMW M3Turner Motorsport82
5GSRosser / MurryPorsche 996Fiorano Racing82
6GSKohler / SmithMustang SaleenTF Racing82
7GSKapudija / PecorariMustang Cobra SVTRehagen Racing / Speedquest82
8GSWilkins / LaceyPorsche 996Doncaster Racing82
9GSKeravich III / TrinklerBMW M3Power Racing Team82
10GSPlummer / CosmoPorsche 996BGB Motorsports82
11GSNonnamaker / NonnamakerPorsche 996Team Sahlen82
12GSFinlay / McDowellBMW M3Finlay Motorsports82
13GSThornton / RussellBMW M3Automatic Racing82
14GSMacleod / GorriaranNissan 350ZDWW/GorillaRacing.com82
15GSMunson / SofronasBMW M3Anchor Racing81
16GSEllis / BavaroPorsche 997Bodymotion Racing81
17GSAlhadeff / SigalPorsche 996Fiorano Racing81
18GSWortzman / WildenBMW M3Zoom Motorsports81
19GSRiddle / WilsonBMW M3Automatic Racing81
20STHoltom / HoltomChevrolet CobaltGeorgian Bay Motorsports81
21STHaskell / TremblayMazda RX-8SpeedSource81
22STWalker / PovoledoAcura RSX-SKensai Racing81
23STLepper / RoachChevrolet CobaltFranklin American Mortgage81
24STThornley / SchwartzottAcura TSXKensai Racing81
25STSalama / TurnerBMW 330ciCSL Racing81
26GSBupp / BuppNissan 350ZHamilton Safe Motorsports81
27STJohnson / ConnollyBMW 330ciMatt Connolly Motorsports81
28STFanelli / DumoulinMazda RX-8SpeedSource81
29STPappas / PfefferBMW 330iTurner Motorsport81
30GSEllis / RossiPorsche 996Knobel Racing80
31STColembie / TuatyBMW Z4TC Kline Racing80
32GSSahlen / NonnamakerPorsche 996Team Sahlen80
33STCiekiewicz / ThomsonBMW Z3Compass360/Racing80
34STAbello / EspenlaubMazda RX-8SpeedSource80
35GSHimes / LinderBMW M3Power Racing Team80
36STO'Shaughnessy / O'ShaughnessyBMW Z4TC Kline Racing79
37STSchlesinger / AltenburgMazda RX-8SpeedSource79
38STWong / DiedrickNissan Sentra SE-RDEI Racers Group79
39STBisignano / WalkerMazda RX-8SpeedSource79
40STCurran / EndicottAcura RSX-SBill Fenton Motorsports79
41STBriody / HalpinBMW 330ciMatt Connolly Motorsports79
42STMoorcones / PoscenteAcura Integra RRadial Motorsports78
43GSGaffney / PumpellyPorsche 996Race Prep Motorsports75
44STBoekdrukker/ HrymackBMW Z3Compass360/Racing74
45GSZavodsky / AckleyMustang Cobra SVTRehagen Racing69
46GSSkelton / FosterBMW M3Anchor Racing65
47GSPowell / KnowlesCadillac CTS-VPowell Motorsport60
48STMagner / StrubChevrolet CobaltWTF Engineering57
49GSGaffney / Pumpelly / PickettPorsche 996Race Prep Motorsports44
50STRobinson / Mitchell IIIMazda RX-8Play Therapy Racing34
51GSMacAlpine / MartinMustang Cobra SVTRehagen Racing24
52GSGrande / Ellis / FoxPorsche 996Knobel Racing16
53GSGuindon / CamirandCadillac CTS-VPowell Motorsport7
54STStewart / SchwartzottAcura TSXStewart Motorsports1
55GSMcCalmont / LawPorsche 996Zoom Motorsports0
56GSPutman / CourtneyPorsche 996Knobel Racing0

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