when i spawn my car that I've made in game, it works and everything is fine. But when i get about 30 feet away from it, it gets all glitch-y and the light bar looks like its hovering above the car. I can include pics if needed but i'm hoping i'm not the only one who has had this problem.

You didn't move the LODs of the car.

You didn't move the LODs of the car.

​Can you explain what you mean by that? I've made cars before and they were ok, but I guess I've forgotten a step

The level of detail, meaning L0, which is main, L1 which is the 2nd, up to L2 which is the lowest poly one (usually). I can't take a pic but you'll find them in the part's hierarchy. They are made so your computer loads lower poly models at distance, without taxing your rig too much.

Open the hierarchy and click the L1's for everything, then move your object into place.