Yup, a Rambler Funny car.
Hayden Proffitt was one the great racers of the 1960s. Proffitt won may races in Super Stock with a Chevrolet 409, then jumped to a Ford when they gave him a Comet A/FX. Proffitt built a Corvair funny car in 1966. The car began with a top, but it was cut off after the car wanted to lift at speeds. Proffitt got the car to run 8.49. In 1967, Hayden took over the Grant Industries Rebel SST funny car program. Proffitt hired famed Amos Saterlee to tune the large 439 C.I. AMC engine. The problems that original bunch had with the Rebel continued with Proffitt. The red car ran 8.11 at 180.85 before being retired at the end of 1967.
In 1968, Hayden put the AMC Rebel body on an unused Logghe Stage II chassis he had. By the end of 1968, AMC dropped out of funny car racing and Proffitt retired from racing for a few years. Hayden returned to racing with a rocket dragster driven by his son Brad. Proffitt later drove the "Hot Streak" jet dragster. (Photo provided by Mike Ditty; info provided by www.draglist.com files)