heaps of room in the front, you should go and test drive a few, as for the 200rwkw mark its not that hard to reach but its all up to how much you want to spend getting there, as to how much fuel, have a quick search there are a heap of threads on ppls fuel economy, mine is crap.
3/4 of a tank to go from Canberra to sydney but mine is over the 200rwkw.