Rally car racer Tanner Foust and stuntman Greg Tracy drove side by side in the incredible stunt, previously completed by Chinese driver Li Yatao, who did the same thing on a 42-foot loop.
The pair were subjected to seven Gs of force as they descended from the highest point.
Hollywood stuntman Tracy said: "I tell you what, I'm at a loss for words. That was absolutely the coolest thing I've ever done.”
Stuntman Foust said: "I felt like I was in a toy."
The race was organised by toy maker Hot Wheels.
