My main consideration was the trip computer readout. It reads 35 MPG and in reality I was getting 22MPG, I have 2 Cadillacs one at 7.5 litre and one at 8 litre. Driving with a light foot is obligatory for me and my wife. I dont think 22 MPG is bad if you consider I live in the Welsh mountains, and most of the local roads are narrow. I just don't understand the trip computer readout.