In the annals of Mustang history, the 1983-’84 Ford Mustang GTP is quite the obscure car. Built for racing in the IMSA GTP series, the four-cylinder car was unusual (for a race car) in that it utilized a front-engine layout, mating its turbocharged Ford-Cosworth I4 with a 5-speed manual transmission to drive the rear wheels. The shell was made up of carbon fiber and Nomex with Kevlar reinforcements, contributing to a 1,770-pound curb weight.
If all that sounds intriguing, you’re in luck; an old documentary on the Ford Mustang GTP race car has surfaced after sitting disused in VHS form at the bottom of a drawer. Bill Riley, the son of Mustang GTP designer Bob Riley, only found the tape cassette over the summer, according to Racer.
“Other than a few people back in the day, I don’t think anyone has seen this,” he says. “It’s a cool snapshot in time of this project my dad was a big part of.”
The Mustang GTP didn’t quite light the world on fire when it premiered, but it managed to win its inaugural race: the 15th round of the 1983 IMSA GTP series, at Road America. That’s especially notable as, while the car moved to a 600-horsepower, 2.1-liter engine for 1984, that engine wasn’t ready in 1983, forcing the team to run a more humble 1.7-liter unit.
If you have half-an-hour to spare, we highly recommend watching the old Ford Mustang GTP documentary above. It’s well worth the time investment.