I knew this would kick it off.
Different strokes for different folks GMC.......I had some 'fun' in the RX but only cocking about with the DSC turned off. As a daily driver it was soul destroying (In my humble) - but then I love my big lazy V6 lumps that will happily pootle along in 5th at 30 when your town driving.
Fuel - just over 200 miles a tank if your lucky.......Zed aint much better but it sounds like a throttled lion rather than a tumble dryer on the final spin.
Faults......3 year old RX had under warranty - new alloys, new CD player, New rear light clusters, new oil cooler hoses, new handbrake leaver, flooded twice, died when left for more than 5 days 3 times and started accelarating in a very odd manner at 30k. Coil packs seem to be worth an instant change by my research.
7.5k depreciation in 18 months difference it you'll be buying one thats already swallowed the depreciation......which does make it an attractive prospect (Zed still gets the vote by a country mile for me though)
I'd be very wary of what Lexx mentions with the stealer though.........have a good luck round if you haven't test driven any others - or get a RAC inspection.