Tags: Bill AuberlenFor this week’s Throwback Thursday, we’re running a “challenge photo” submitted by RACER reporter Marshall Pruett.The image depicts IMSA Camel GTU action in May 1987 in a 300-kilometer race at Mazda Raceway Laguna Seca. Owner-driver George Alderman leads in his No. 32 Nissan 300ZX-T, followed by three more...