If you think you will ever be off paved roads in mountain/hill country, seriously consider 4wd. Sister and B-I-L had a 2wd SUV, and a relatively-light hybrid camper. We went down a steep road into Lower Bowns Reservoir in Fishlake National Forest, Utah. Camped a few days. They left earlier in the morning than we did, but B-I-L came walking back to camp. They couldn't get up the hill, and slid (back tires spun, and brakes couldn't stop them) into the ditch as they were trying to get up the hill.
I used my 2007 4wd Grand Cherokee, hooked to their vehicle, and towed them up the hill with no problem. They got rid of the 2wd SUV before their next campout. Got a 4wd. Not worth the risk of getting into a campground (yes, this was a National Forest fee campground, with facilities, etc) but not getting back out.