When You Edit An Already Made Car, It shows No Model In The Game??

So, I Got Blender And I Imported The Gavril D-15 Or Something And I Added Something To It, But It Shows No Car Model Anymore?? Why is That.. Is There Something I Need To Do To Fix It??

 

Most likely Blender messed up the names of the parts and put something like 0001 behind everything. The game files look for parts with the original name and therefor can't find anything resulting in a invisible car.

 

So what do you suggests I should do?? Not tying to be abiotic or rude but I am just carious!

 

He already told you what to do, check that your modelling software hasnt messed up the names and if it has then fix them.

 

So How Do you Check The Part Names? I'm sorry but I am really new to modding and want to try it!