How to make car thumbnails?

I am trying to make a thumbnail for my own configuration, but it turned out weird and the angle is wrong

 

I'm doing it manually, I have tried automatic before but it messes the game up and won't work

 

Alright
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It only shows the rear end of the car, and switches configurations every time I press "play"

 

yeah, it runs through every configuration file of the vehicle that you pick, just delete the image files that you don't need.