2005 Buick Rendezvous CX AWD 4dr SUV (3.4L 6cyl 4A)
I have owned many GM vehicles, and have found this to be the most comfortable and trouble free of them all. I was in a van last car, and decided to downsize. I love this size as I have room for anything I want to haul, but small enough to feel like I'm not in too big a vehicle. I got the 3.6 V6 and find it to be quiet and responsive, but can't get the mileage over 19 mpg on the highway. I also find the liftgate to be heavy, and will get the automatic one next time.
GPS, headroom, sunroof, and the seats. The seats are the most comfortable of the others brands I tried.
Better gas mileage would improve this vehicle tremendously. Also, better map lights in the front. You need to have whatever you're looking at right under it in order to see. If mileage doesn't improve, put in bigger gas tank.