Covet wont spawn

Have cleared Cashe, deleted all mods related to the Covet, All engine mods and car mods for the covet deleted. Spawns like there is something there but engine doesn't rev and car is invisible. What should I do??? Thanks a million in advance.

 

Version number and where did you get it?

Also, have you verified integrity?

 

Try spawning in the covet, then open the console by pressing the tilde [~] key. Put what it says here.

 

Also, do you get any text saying "fatal vehicle exception"?