Requesting help creating a vehicle using a finished model

So, like the title says I'm trying to create a vehicle.
Yes, it's a ripped model and I do feel as bad as I should, but I finally saw a chance of my dream car in the game and I just had to take it. I also won't release it for the public, it's for my personal pleasure.

I've been following the Introduction to Vehicle Creation as closely as I could, using the finished model instead of creating one from scratch.
All the Nodes and Beams should be in place in the jbeam and now I'd like to check...

Requesting help creating a vehicle using a finished model