Prototype Development Group

World's fastest GTM and the "Spirit of Thunderhill". Racing in Trans Am SCCA, and NASA enduro.

[Prototype Development Group @ProtoDevGroup]

2021 NASA WERC Schedule! Which race is your favorite?

March 28 - Sonoma 2:20hrs (Sun AM)
April 17 - Buttonwillow 3hrs (Sat PM)
May 21 - Willow Springs 4hrs (Fri PM)
TBD - UMC 6hrs (Sat PM)
Oct 15 - Buttonwillow 3hrs (Fri PM)
November 13 - Thunderhill 6hrs (Sat AM)

[Prototype Development Group @ProtoDevGroup]

Video: @carlrydquist 's Trans Am by Pirelli 2020 West Cost Super GT Championship award acceptance. Thank you to everyone who voted for the PDG4 GTM, we are all super proud that it was nominated in the Fan Favorite Car category. https://t.co/cL0LtfotQv @GoTransAm @FactoryFive