Factual error: During Lee Iacocca's slide presentation to Henry Ford II in 1963, there are two slides that reference James Bond. One shows him standing next to the Aston Martin DB5, which made its debut in "Goldfinger" in 1964, and another shows a still image from "Thunderball", which was released in 1965.
Factual error: Christian Bale is eating a bag of potato chips. That bag is foil-lined or made of some type of polymer blend. Potato chips were packaged in a wax-paper/plastic bag in the mid-sixties. The inside of the bag would have been whitish, not silver.
Factual error: Throughout the movie, Ken wears a pair of Ray Ban Balorama (4089) sunglasses. His pair however, has the Ray Ban logo on the temples; in the 1960s, Ray Ban sunglasses didn't feature the logo on the temples or lenses.
Factual error: When Mollie Miles is talking to Ken Miles on the phone while he is at Le Mans in 1966, her handset has a modular connector, which were not introduced until the 1970's.
Factual error: When Ken is in a room seeing a brand new Ford engine being tested, he and a Ford engineer are wearing hearing protection. The protection being earmuffs, which look way too modern for the 1960s. They have a detachable earmuff, which wasn't introduced until decades later.
Continuity mistake: The clock at the Ford pit shows 05:09 during the phone call and 00:53 (can't see it exactly because it is too blurry) in the next shot, when the mechanic holds the sign EZ Miles. (01:56:10)
Factual error: While Miles and Shelby share a "fizzy pop", Miles is holding a glass Coke bottle. The Coke logo on the bottle wasn't invented until circa 1985, roughly twenty years after the film is supposed to take place. (01:16:11)
Audio problem: During the last scene with Ken, he is talking to Phil, as he jumps into the J-Car. He starts the car and the sound of the car is not that of a carbureted 7.0L (427) V8 (which is what it should be) but the sound from a 2005-2006 Ford GT. This is the car Ford sold for 2 years as a tribute to the GT40. The start up sound with the supercharged V8 (which is in the GT) is unmistakable. Especially to car people. When he's accelerating the engine/exhaust sound changes to the 7.0L (727) V8. (02:18:51)
Factual error: The meeting at Ferrari would have taken place outside of Modena. The photographer raced on a scooter, apparently to an Agnelli Villa, which would have been outside Turin, about 200 miles away.
Factual error: When Mollie is scaring Ken in the station wagon, they pass a red Chrysler 300 twice (tip of the hat to the chase scene in Bullitt). The Chrysler is a 1965 model, and the scene takes place in 1964.
Answer: Watch any NASCAR short track night race where heavy braking is required, the brake rotors glow at every turn.