Mercedes-Benz SLR McLaren 722 GT in SPEED World Challenge GT


Our friends at TRG Motorsports sent us the press release below. Along with Circle B Motorscars of Texas, they will debut the SLR McLaren 722 GT in Joliet, Illinois on July 26:

Petaluma, Calif., (June 30, 2009) – TRG Motorsports together with Circle B Motorcars of Texas will debut the No 71 Circle B Motorcars Mercedes-Benz SLR McLaren 722 GT car in the SCCA Pro Racing SPEED World Challenge GT Series at Autobahn Country Club in Joliet, Illinois on July 26.

The Mercedes-Benz McLaren SLR 722 GT is an exotic race car that features a Super Charged Mercedes V-8 engine capable of producing 680 horsepower, but will run in the World Challenge GT series with a restricted 550 HP V-8 engine developed by RML (Ray Mallock Limited) in England.  The car was designed and built by RML, in accordance with McLaren Technology, and is a limited edition racer, with only 15 in existence.  The name SLR stands for “Sport, Leicht, Rennsport” (Sport, Light, Racing).

TRG and RML are currently homologating the SLR 722 GT to comply with the SCCA World Challenge GT specifications.  The project is being headed by Bill Rader, No. 71 SLR GT project manager, at TRG Motorsports’ facility in Mooresville, North Carolina.

TRG sports car ace Spencer Pumpelly has performed an initial shake-down at Virginia International Raceway earlier this month.  Pumpelly will pilot the car in four races this season.

“Considering the amazing performance of the street car versions and the history of both Mercedes-Benz and McLaren I could not imagine this won’t be a rocket ship,” Pumpelly said.  “From what I have seen so far I think racing drivers and fans alike have a lot to be excited about with this car.  World Challenge is tough racing. The format is a pure sprint with a daunting standing start to kick it all off.  The expectations going into it can only be that the car is going to be a powerhouse and the team backing it, TRG – one of the best in the business.”


Owner of the No. 71 Circle B Motorcars SLR 722 GT, Peter Blom, is anxious to see the car on the track.

“Bearing in mind that these cars have a racing history in Europe dating back to 2008, we are excited to see what it can do in U.S. trim,” Blom said.  “We decided to race the 2009 version of the car here in the states to see if we can draw out the street versions of the cars that are currently in North America.  Some people buy these cars to add to a collection, I bought mine to race.  Together with TRG, we will see exactly what this great car is capable of in competition.  It looks like it is going 200 mph standing still and I can’t wait to see it on a U.S. race track.”

TRG owner Kevin Buckler is looking to the team’s first foray into the SPEED World Challenge.

“We want to show case the performance of this awesome car here in the states as well as our team’s capabilities,” Kevin Buckler, TRG owner said.  “TRG will be making its debut as a team in the series as well.  It will be the car’s first competitive laps in North America and we hope that some of the owners that have the street version in this country will also want to bring their cars out to race, or simply do some track days.  TRG and our awesome Mooresville facility will be prepping the SLR’s for clients to run in a variety of events, not just in full blown race trim.  We want the owners that purchased these vehicles to experience the thrill of learning to push the car to its limits, whether that is in stock trim or at a driver’s education event.  We can prep the cars in a variety of racing trims and we offer upgrade kits that will be available through TRG Motorsports.

Spencer is going to drive the car for us in four races this season at Autobahn, Mid-Ohio, Road America and Road Atlanta to showcase the car and the team’s abilities.  We are looking forward to seeing what exactly this car can do against the established competition in the World Challenge GT Series.  TRG has the full capability to race and service customer SLRs as well.”

TRG was founded in 1993 and has been competing at the top level of motor racing ever since.  The team has the most wins of any team in the Grand-Am Rolex Series with 26, including the 2005 and 2006 Rolex Series GT championship trophy to go along with wins at the Rolex 24 at Daytona and the 24 Hours of Le Mans.

TRG is a manufacturer and distributor of high-performance racing parts. The group specializes in engine and chassis tuning as well as full service professional race car preparation. The company also provides electrical and mechanical engineering services, driver development and arrive-and-drive opportunities. TRG is based in Petaluma, Calif., near its home track of Infineon Raceway in Sonoma.  The company’s NASCAR operation is based in Mooresville, North Carolina and a new state-of-the-art facility is coming on-line at New Jersey Motorsports Park in late 2009.

For more information please contact Kyle Chura at (248) 821-0468.  Visit their website for detailed team info. or

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