Two big problems! Spinning tires even in neutral and no interior.

I just used BeamNG for the first time since the Jan update. I made a dope car but had two big problems. The first is that I can't add an interior. The second is a HUGE problem, when I try to drive it in BeamNG, the tires spin like crazy even with the car in neutral and turned off! The rims don't spin, but the tires go insane!
Any ideas for either of those problems?

 

An interior can be added using mods and 3D fixtures, dunno about the tires.

 

I tried using 3D fixtures but they all insist on sitting on the exterior. Big Audi fan btw

 

really?

 

yeah fr it's really annoying

 

if you go into 3d mode, you should just be able to slide it through the body, like no-clip

 

your profile pic looks so much a FH4 Peugeot
--- Post updated ---

I tried that and it didn't work