Factual error: In the opening shots, Joe's crew works on his race car inside the train's closed, moving boxcar. They rev the engine and make clouds of exhaust, causing one mechanic to cough and complain about the fumes. He should be doing more than just complaining. In fact, they should all be keeling over. Car engines create carbon monoxide gas, which in an enclosed space is deadly. (00:04:00)
Audio problem: During Joe and Eddie's first race, you can hear the sound of squealing tires as they round the bend. But they're driving on a dirt track. Tires don't squeal on dirt. (00:15:40)
Continuity mistake: Joe shoves Lee's friend Ann out the door and twists the lock so she can't come back in. After he and Lee argue, he then storms out the same door, which somehow opens for him easily, even though he hasn't unlocked it again. (00:31:10)
Continuity mistake: In the final race, Joe's car has two drivers in all the close-ups, but in the long shots, only one. (01:05:45)
Revealing mistake: Rear-screen projection is laughably obvious in all the racing scenes here - especially when two side-by-side car drivers carry on a highly-improbable mid-race conversation with the rest of the race cars wobbling badly on the screen behind them.
