Theres loads of vehicle info floating around the forums - along with a few
amusing screenshots. Don't laugh, thats exactly what Theed / Coronet etc are going to look like for the first few days!
Anyway, heres a little table with some stats on the 3 types of upcoming vehicles:
The stats are kind of important, as they're aiming to effectively make it so each type of vehicle is more suited to certain terrain (i.e. different planets) - this is especially relevant as you can only have one vehicle in your datapad (although you can hold many deeds in your inventory), so you'll want to choose wisely based on the sorts of planets you're visiting most often.
A sidenote - some people might wonder why I attached the table as an image. I was planning to quickly paste the html from the forum post in here, but do you know how much code was generated for that small table - 2 pages of straight text, when view in Notepad, on a screen at 1280*1024 - how the hell can anyone justify creating such inefficient code?