I have a good friend that has an older t2 and my brother has a new t2, and my cousin a new t4 which i have drove a good bit........ the biggest difference is, the new one has power steering and tons of storage, Fox piggyback shocks are standard on the new T2, I dont think it is much if any wider, it is as long as the 4 seater, so it is tougher to turn can get hung going over large berms and things that you would not have before.....the storage is awesome on the new t2 the motor is beefed up a bit, power steering is great! thats the biggest things i am aware of.