I've had GM cars since 1990 when I traded a doggy '74 LTD in on a Buick LeSabre. It was an excellent car, had the 3800 V6, ran good and got over 30MPH on the highway.
Traded that on a '99 LeSabre, another good car that didn't quite do as well on gas mileage.
Traded that on a 2007 Buick Redezvous, super comfortable but got lousy gas mileage, never over 22.
Traded that on a 2011 GMC Terrain. Great car, but I'm big (6-3", 245) and found that on a day trip or longer, it wasn't comfortable. Mileage on it never over 22.
Got mad over the Government Motors Consortium bailout, and then the bonuses, added that to the discomfort and did what I should have done before looking at the Terrain. I looked at an Edge.
Nearly the room of the Rendezvous. Got the Limited with everything but the Adaptave Cruise (which I wish it had) including the 2.0 I4 Ecoboost engine. Love it!
If I didn't know it was a 4 cylinder, I'd never guess by driving it. While looking at the Terrain, drove a 4 cyl Equinox and it sounded like an Indy car every time I left a stop light. That would get old. Edge is quiet.
I hope the Edge serves me well for at least 5 years. Traded the Terrain and my '03 Ranger Edge on it. Down to one car now, which is plenty for two old people. Besides, wife will kill me if I even look at another car for a while. I only had the Terrain for 10 months.