My rig cruises down the highway very nicely with the Equinox in tow. Takes the grades well in the east and midwest, west of Denver it was challenged as most motorhomes are. Would I like a 400hp or bigger? Of course, most people would, but after driving this rig for four seasons and 30,000 miles, I've decided I don't have to be the first guy to reach the Eisenhower Tunnel.