When a car company releases a new model of one of their lines of vehicles, while it may contain some new features, in general there is very little change to the appearance of the vehicle itself.
As for what I mentioned being single player balance, this is not something that differs between single player and multiplayer.
The tier system is there regardless. It is just easier to make my point using a single player comparison because that is where it can be seen the easiest.
Characters Alan Markson: The Hellfire Legion's Lord Commander The Perihelion: Freeport Four's guardian, and yet much more. Missing and assumed Lost with all hands. Eric Dresmund: Junker, smuggler, thief. Last seen drunk on Beaumont Vayrn Wyard: IMG Recon pilot turned Neo-Terran Captain. Last location unknown