Unsolved Slap another model onto an automation car

I am recently working on a meme car, a cursed Ssangyong Meshslap with broken model.
I replaced the model, but it still uses the automation one.
What should i do?
Mod:
--- Post updated ---
oh and please ignore the sound lmao

 

When I looked in your .dae file, the car was over a 1.5km long. It might work if you made it smaller.

 

Okay, thanks

 

did u edit the main jbeam?
especially the node section?