The initial outlay for a newer model is generally offset by the things they need to fix in an older one.
R32's obviously have less torque than a 33 or 34 due to the 25 vs 20.
My car doesnt chew fuel at all, nor oil. Get 460km to a tank ~52L or so when i fill up, so thats more than your average car but not by a huge amount.
33's seem to be a bargain atm, not much more than a 32 with a 25 in them and a bit newer which may or may not be an advantage depending on the car in question.