Continuity mistake: When Kat and Patrick are playing paintball right before they kiss you can see that they are barely covered in paint. When they do kiss and are on the ground, they are totally covered with it. (01:06:35)
Continuity mistake: When Bianca takes Cameron to Kat's room, she opens the third drawer. But when the camera angle changes, it's the second drawer that's opened. (00:31:35)
Continuity mistake: When Kat and Patrick are in the car after the party, when they're driving there's no rear view mirror, but one appears once they stop. (00:49:30)
Continuity mistake: When Patrick sings to Kat during her soccer practice, after the band does their solo and Patrick begins to sing again, the camera shows a close up of Kat in which her teammates follow closely behind her. The camera goes back to Patrick then back to Kat, this time her teammates are still following her but they are further back. After another flip to Patrick the camera flips back to the girls who are back where they were the first time.
Answer: A 1964 Dodge Dart.
FordGuy