John Carpenters adaptation of Stephen Kings Christine is a classic of 80s horror, and while the Christine cast is top-notch, what many genre fans remember most is Christine herself. This includes the scene where the car appears to completely repair itself right before the audience’s eyes. Christine follows an unpopular nerd, Arnie Cunningham, who buys a red Plymouth Fury named Christine and steadily develops a strange and unhealthy obsession with the vehicle, much to the shock of his only friend, Dennis.

https://screenrant.com/christine-movie-car-repair-scene-practical-effects-explained/