Factual error: In the frontal collision between the two cars where one is catapulted through the air using the other as a firing ramp, the nose section on the flying car is clearly a tubular metal construction. The deformation zone of the car would be made from carbon.
Factual error: During the movie the driver Brandenburg is driving the Target car with the helmet design of Juan Pablo Montoya (former CART driver now in F1). This was done to take video of Acquall races and put them in the movie, but at the end of the movie, before the big race, you see drivers getting ready for the start, including JP Montoya, with the same helmet as Brandenburg. I have never seen two of the same helmets in two same cars in one race.
Factual error: In the specially shot action scenes the cars used are not Champ Cars. The main giveaway is the shape of the car from behind the driver's head backwards, which is not flat (as Champ Cars) and does not include the turbo pop off valve used in CART.
Factual error: Before the race in Germany we see a weather broadcast on an European broadcasting station. Unfortunately there is no such broadcasting station.
Plot hole: After the young driver does the 'jump test', he and Stalone are shown walking to their cars. Although in tremendous pain a moment earlier, he now walks without a limp.
Continuity mistake: When Slyvestor Stallone is driving in the car to prove himself to the team, he does the 3 coin trick. When he runs over 2 of the 3 coins, you can see them fly up into the air, however, when they check over the tyres at the end, all 3 coins are in the tire.
Continuity mistake: In the German race, you see Memo getting ready to pass Jimmy. In this moment the Motorola car is piloted by Beau. You can see the Target visor. (01:14:35)
Factual error: In the last race Jimmy Bly is in second place behind Beau Brandenburg. You see a shot of Jimmy's helmet and on it you see the reflection of the car in front of him. On the tail wing you can read the brand 'Motorola' from left to right. However, as it is a reflection, you wouldn't be able to read it form left to right, but rather from right to left.