The trick that Sylvester Stallone's character (Joe Tanto) performs with the three coins is reminiscent of a trick real-life Formula One driver, Juan Manuel Fangio of Argentina used to perform. The four-wheel drift enthusiast did it to test himself.
Some of the sounds are not of CART Champ Cars, but rather of Formula One cars. The movie was originally supposed to be about Formula One racing, but due to restrictions imposed on the production crew, the producers had to look elsewhere.
The relationship between Sophia with Jimmy and Beau is clearly reminiscence of that of Corinna Betsch, who dated Heinz-Harald Frentzen before moving onto Michael Schumacher, whom she became married to.
In the scene before the last race (Detroit), real Champ Car drivers are portrayed doing pre-race rituals. 'Kenny Brack', the driver of the Shell car, tapes a picture of a baby inside his race suit. The baby in the picture is Renny Harlin's son, Lukas.
Renny Harlin is in the movie as a crew member for two different teams. He is first seen as a PacWest/Motorola crew member who gets out of the Motorola car so that Jimmy Bly can demonstrate that he can get out of the car in five seconds. Harlin is then seen in a Bettenhausen/Herdez uniform taking his real life son Lukas to a playground.
Jimmy Bly's helmet is almost the same as former CART/Champ Car driver Mark Blundell's helmet. The only difference is Blundell's has his initials MB on the top as opposed to JB on Jimmy Bly's helmet. Blundell also drove for Pac West Racing which Jimmy Bly's car is based on.