We just picked up our new 23 Vision XL 34B two days ago and drove it home roughly 180 miles from Jacksonville, FL to Savanna, GA. We tow a 4,000 lb Jeep Cherokee and although this route is not hilly, a couple of bridge approaches had enough slope to them that I could tell the engine has plenty of power. I do highly recommend that you do a through test drive at interstate speeds so you get a feel for how the tractor trailers move the rig around. It’s bad enough that I am already researching after market solutions that may help. Even when not fighting the wind blast from trucks, the rig doesn’t track without constant input to the wheel. This will be very tiring on long runs. Drive a comparable size diesel pusher to feel a comparison. Hope this helps.