I just recently saw a Jeep wrangler Rio grande Edition Standard. The car is beautiful, silver no rust and is intact from the inside. The upholsetery is just a bit dirty, but thats about it. Her car is lifted and I believe it has 32" or 33" wheels. I tried the car out and it seemed to run good. I know wranglers are heavy, but when I we tried it in the freeway the car wouldn't go above 50 or 55 mph going up the little hills. I was wondering if this is normal for a 4 cylinder wrangler because of its weight and the lift. If it is, what parts can I add that are not that expensive that will give the engine that expra hp push to take the car up to lets say 70 mph. Just enough to ride it in the freeway.