Darrell Anderson’s newly constructed ‘04 GR40 Mustang set a new track record and won its first race at Infineon Raceway on Saturday. Piloted by Guy Cunningham for its inaugural event, the #45 GR40 mount was quick out of the box. “We haven’t even started development tuning of this car yet, and we did none of that this weekend” said Cunningham, who also stated he was pleased to be racing in the prestigious American Iron Extreme class of the National Auto Sport Association (NASA) series of races.

The car is the latest SN95 based GR40RT pony to come out of the Griggs Racing livery, and has been a sensation everywhere it has been shown. Anderson is to be the on-going driver; however a schedule conflict necessitated Cunningham filling in.

Of note, Bruce Griggs, Cunningham’s team mate in prior years was also in the event, finishing second on Saturday in his venerable “Old Blue ‘93 GR40 Mustang, the same car in the same configuration that was undefeated in 2002 AIX competition, and winning championships in 2002, 2003, and other selected races and events in SCCA and NASA. “The 40 car was sitting in the back of the shop since last run a year ago at the SAAC convention at Miller Motorsport Park in Utah driven by noted journalist Tom Wilson.” It was brought out at the last minute by Griggs “to see if he could still drive.” Griggs who turns 60 this year said “I guess I can still do it, and I guess the old slug can still run too.” This was proven by Griggs’ victory the following day in Sunday’s AIX race.

Watch Guy Cunningham break the AIX lap record!

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The new turnkey GR40 Mustang series

Click here for the ride of your life!

To date:  No Ferrari has been able to beat John. I hope they let us back next year.

GR40 Aluminum Spindle - Griggs Racing announces a new Billet Aluminum Modular Spindle and Hub Assembly designed for use on Kit cars, street rods, GR350 vintage and GR40 late model Mustangs. It is five to six times stronger that the stock unit and in true Griggs fashion the entire assembly is lighter than an OEM SN95 or SN197 spindle/hub assembly. Read about the improved performance in the GR40 Spindle Article

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Drifting Video
Dan Piña at Barrett Jackson

Ernesto Roco Lowers Track Record - The new track record has been lowered almost 2.5 seconds to a 1:53.216. Ernesto was also able to set a new AIX qualifying record of 1:52.060 despite other on track traffic. He credits these accomplishments to his GR40 World Challenge Suspension System and aero dynamic improvements he has made. Ernesto says there is a 1:51 in the car and next time he will be up to it. Read More

Roco Wins AIX - It seems that dreams do come true for the diligent and strong at heart. Ernesto Roco, driving his 98 GR40 WC-SLA equipped Mustang, won the American Iron Extreme (AIX) National Championship. We would also like to salute Patrick Lindsey who got second place in AIX in an under powered GR40 World Challenge equipped AI car Full Story