I've been driving a 1994 (YJ), 4 cyl. Wrangler for several years now. I average about 20 mpg, have plenty of power for off-roading in low range, and have had very few problems with it. I'm running 235/75/15 Goodyear Wrangler tires and it goes anywhere I need to go, easily. It had 97000 miles on it when I purchased it and now has 130000 miles. It uses about 1/4th of a quart of oil in 3000 miles. Many new cars don't do that well! You won't set any land speed records with a 4 cyl. Jeep, but the vehicle is very balanced (same weight on all 4 tires) and the little 4 banger is nearly bullet proof. When it comes to Jeeps, IMO, bigger is definetly not better! The newer the jeep, the bigger and wider they get. If I could find a 4 cyl. CJ-7 in good condition, I would prefer that to my YJ. By the way, '97 and newer Wranglers are TJ's and have coil springs and are much more car like.