i would love to see quite a few exotic body styles as well as trucks. possibly even an El Camino or Ranchero body style. More American style muscle cars would be a nice touch as well as.
Another interesting idea would be to add a showroom in which you can see all your cars up close and personal with a way to toggle the hood open for a specific vehicle so you can admire the beautiful car and engine you built.
Obviously this isn’t a high priority update idea, but this would be a cool thing to add close to the end of development.
New car bodies are coming, including trucks, don’t worry.
As for the showroom thing, I’m not sure if it would be deemed a relevant addition that justifies the extra time required to implement it, but it could be a possibility just for a small fun feature to add maybe post-release.
As said, bodies will be added with the updates. The next one has been shown to have 2 mid engine supercar bodies, 2 mid engine mr2-ish bodies, and a musclecar body. You can check out the automation youtube channel or use the search bar to find out. Or look at the beta design thread. Or go on the automation facebook page.
I agree, an El-Camino style body would be cool. Superchargers have been talked about constantly and a simple search would have told you that. They are coming, but plenty more is to be done before they think about adding superchargers. New bodies, UI and car designer scenarios are first on the list of additions.