Solved problems with mesh

Hello everybody i am currently working on a small mod using the autobello kitcar tutorial but im having problems with the mesh.
It is currently floating in mid air and is also a outdated version of the model i want to use.
I cant find this outdated model anywhere in my files but the mod is still using it somehow.


picture of the 3d model i want to use (.blend file)




I have also noticed that the dae file is invisible when i open it (its not hiden or anything its just invisible)


i have already tried clearing the cache but that didnt work.
does anybody know whats happening?

 

Applied all transforms?

 

Thank you that did fix the problem with the rotation but its still showing the incorrect mesh.
What can i do to solve that problem?

 

It turns out that the parts that did not show up in beam had no material assigned to them