I hope vehicles will fit seemlessly in with the ET world, and don’t forsee otherwise. SD have said they have put a lot of thought into vehicles and how they should work and that is fine by me.
I see vehicles as a means of transport across large areas and not the all round killing machines as has been the problem in “other games”. Sure there will be a fair amount of killing done with them but you have to remember that it has been said many times that the indoor sections counteract the outdoor vehicle skirmishes and the experience is not any worse for it.
So bascially I don’t see vehicles (or any other factor) potentially affecting the ET name in any way but a good way.