I think Carfax uses generic terms, I’m not sure I’d get hung up on that. They don’t seem too picky about getting things right.
I had a BMW. It was hit by an idiot that pulled in beside my car in his old truck. He went inside for a minute to punch in, then went out to move his truck into a legal parking spot for him, 20 feet away. The BMW was white, a convertible, black top. I’d ordered it from Germany, just like I wanted it. It was pristeen. Manual transmission, I’d put a short shift kit in it. The car was perfect. It was early morning so still dark. In the 60 seconds or so he was inside, this cretin “forgot” my car was there, didn’t see my car, cranked his wheel to the left, and backed up deeply creasing my car all the way down the left side, front wheel well to back bumper. I don’t know why he didn’t stop when he first started the scrape. He didn’t, though. He backed all the way out. It was an expensive to repair. Anyway there was a Carfax report, of course.
The Carfax listed it as a “Collision left side” despite the fact mine was parked. I suppose it was sort of a collision, but not the type of collision one usually thinks about with two vehicles colliding. Carfax didn’t mention it was a parking lot accident, didn’t mention mine was parked, didn’t really mention anything except the “collision”.
When I sold it, I learned about “diminished value”. Just the fact there is a Carfax report impacts the value of the car. Mine was fixed absolutely expertly, paint, trim, body, all of it. It was perfect. Anyway, that minute of inattention by that man too lazy to walk 20 feet cost me thousands and thousands when I sold that car.
So Carfax reports indicate insurance claims. Beyond that I don’t think they don’t bother with much in the way of details.