From the ad:
"Custom built one of a kind built on a 1972 DeTomaso drive train but with a totally custom body by Sam Foose, Chip Foose's father. It was made to similar design by Bertone in Italy on a 1968 AlfaRomeo drive train.
The DeTomaso drive train is a 351 Cleveland Ford engine &
5 speed stick shift & hydraulic clutch."