Maybe, but case after case, the perp leaves the car behind. Maybe because it isn't proof of anything. They know the LE will suspect them anyway, this is just another piece of suspicion but doesn't prove anything.
Getting rid of a car isn't easy, it puts you in another place that you could be observed that you clearly don't belong.
There is a case in florida. Memorial day weekend. Wife and teen son disappear. But they didn't take the car, husband says she left, probably with a boyfriend. The teen son has never been registered in highschool anywhere. Husband has done massive renovations including taking out the wood flooring in the house.. Hmmm. No charges yet, don't think they even were able to get a search warrant.
Another case, husband strangles a woman (estranged wife of ex's boyfriend) and brings her to his house to make it look like she murdered his wife, and then commits suicide. But leaves the woman's car at her house. Somehow she made it across the city, no transit route that wouldn't have taken half the night, without her car. He's in jail. But the car was just a what a dumbass move, but didn't play into the overall case too much.
