12 Hours of Sebring

Car number 53 is Gerhard Mitter and Rolf Stommelen's Porsche 907 LH. Car number 76 is Ray Heppenstall and Ed Lowther's Howmet Turbine. Car number 78 is Sam Posey and Jim Kauffman's Ford Mustang.

24 Hours of Daytona

Paddock scene, (Car Number 76), the Howmet TX, (Ray Heppenstall, Ed Lowther, and Dick Thompson, co-drivers), engine detail.

24 Hours of Le Mans