Changes with the game.

So to start off I am a very new member of this amazing game after seeing the review on Jalopnik. After a few hours I was hooked and preordered the game. But back to my question I was surfing the forum posts and came across one showing your original rocket hub for the game. (http://www.rockethub.com/projects/2752- ... ycoon-game) I noticed in the video that originally there were different options for types of wheels not just tires and also I believe three chassis types. Seeing as i couldn't find anything in the search I was wondering where along the lines those were eliminated and what the thought behind that was. Id love to be able once the truck body is out to use a body on frame design and have the ability to change wheels based on different models of the car. Thanks in advance for both an amazing game and any response.