The Swap Shop started as a drive in theater. Shortly after it became a giant flea market. Owner Preston Henn earned enough to race and used Swap Shop to sponsor his own and other peoples racing cars.
Jaar year
#
Team & results
mijn collectie / my collection
drivers: Gunnar Jeanette (USA) / Duncan Dayton (USA) / Peter Kitchak (USA) / Ron Zitza (USA)
team: Gunnar Racing
car: Porsche 911 GT1 G99
result: dnf / 9 laps
Minichamps MC 400 036806
driver: Al Unser Jr. (USA) / A.J. Foyt (USA) / Bob Wollek (F) / Thierry Boutsen (B)
Team: Preston Henn Racing
car: Porsche 962
result: 1st / 703 laps
Spark S 0947
drivers: John Paul jr. (USA) / Jean Rondeau (F) / Preston Henn (USA) DNS
team: Swapshop / Preston Henn Racing
car: Porsche 956
result: 2nd / 358 laps
Quartzo Q3073
drivers: Preston Henn (USA) / Edgar Dören (D) / Michel Ferté (F)
team: Swapshop / Preston Henn Racing
car: Porsche 962
result: dnf / 247 laps
Spark S 1910
drivers: Preston Henn (USA) / Claude Ballot-Lena (F) / Jean-Louis Schlesser (F)
team: Preston Henn / John Fitzpatrick Racing
car: Porsche 956
result: 10th / 328 laps
Quartzo Q3071
drivers: Preston Henn (USA) / Claude Ballot-Lena (F) / Jean-Louis Schlesser (F)
team: Preston Henn / John Fitzpatrick Racing
car: Porsche 956
result: 10th / 328 laps
Minichamps MC 430 836547
drivers: Bob Wollek (F) / Claude Ballot-Lena (F) / Preston Henn (USA) / A.J. Foyt (USA)
team: Henn's Swap Shop Racing
car: Joest Porsche 935L
result: 1st / 618 laps
including 
movie
Spark 43DA06
drivers: Preston Henn (USA) / Michael Chandler (USA) / Marcel Mignot (F)
team: Swapshop / Preston Henn Racing
car: Porsche 935 K3
result: dnf / 45 laps
Quartzo Q 3016