I setup a map and made a model of a metal and glass tram car for my game.. there are 2 sliding glass doors on the side of it that are bound to the tram car, and I have the tram following a spline down a curved track. If I just have the tram move in 1 direction, this works very well, but when following the spline the doors follow the tram in crazy positions, any ideas on fixing this? thanx..

That makes sense.
I'm not sure of a solution, but I do have some ideas.

I assume the doors are parented to the tram. so when the tram makes a turn, the doors turn too. However, the doors don't turn exactly with the tram which is causing your problem.

I suspect this occurs because the tram is turning based on its point of origin. the doors and the tram might not be placed in suitable locations based on this point of origin.

- make sure the point of origin is in the middle of the tram. Also make sure the doors are aligned with the middle of the tram. This way the doors and the tram all refer to a similar point of origin of which the they are rotating around. Then hopefully when the tram rotates, the doors follow around that point too and stay attached to the tram as they should.

Have you looked back at the tram in the game checked out how they did it? They had a tram that made turns.