And sense all you care about is how fast it goes. I bet if you put a 2.5 in a MT-2 it would go just as fast as a rustler.. You even said you plan on putting a new engine in it anyways.. So comon sense on what to get.. MT 2, 4 wheel drive, more travel, more ground clearance, more durable.. Hmm lets see what the rustler has over the MT-2, its faster... Thats it, and its only cause its got a bigger engine.