when i first got on the game i realised there wasn’t as much car bodies as there should, BTW i bought the supercharged version of the game, and engines, i thought i was supposed to have V10’s V6’s V12’s and V16’s, i thought we were supposed to have sedans, and more bodies other than 2 supercar bodies and a MR2 Style Body
Hello gt535, welcome to the forums. You have bought a preorder to a game still in development. If you take a look at the page where you bought this you would see it stated several times that this is still in development. More content is forth coming but it will be a while yet, until the game is ready however feel free to join in the community and start building cars and engines. If you want more bodies right now however, try a front engine design.
Also make sure you activated your account, and fill those credentials in in the Automation Launcher screen. Make sure you press PLAY GAME instead of PLAY DEMO, too.
Looks like he did that part at least wizzy but he only saw the midengine bodies.
The bodies the OP mentioned aren’t available in the demo Wizzy 
He just clicked on mid-engined design.
Edit: Ninja’d by Niall
Aww the little bot is copying me, how cute.
I do not know what you are talking about. I mean, it’s not like I deleted any posts or anything