I traded in a 2007 Chevy Silverado crew cab that got 24 to 26 miles per gallon. My Envoy gets terrible gas mileage which is a bummer. Steering is hard to get used to, my truck was much smoother. Envoy is quiet as was my truck. I guess if you want something that is quiet, smooth, and gets good mileage buy a Silverado crew cab. Costs less than the Envoy and has much more room inside.
Short turning radius.
Install the 4,8 V8 engine that gets higher gas mileage. Make it wider, make room for two drink trays in front. Replace the engine operated cooling fan with electric cooling fans such as on the 4,8 engine. Seat belts are hard to get at, fix this proble as it is a carry over from prior years.