You can tow a lot of vehicles 4 wheels down. I assume you want the car to be your daily driver(DD) when not towing? I would focus on a car that would meet these needs first. The next thing I would look at is how you would use the vehicle when traveling in the MH. Would you be exploring off roads out west in remote areas 90% of the time or will you be on paved roads 90 % of the time and maybe 10% of the time on dirt roads. Do you want space for large dogs and stuff in the tow vehicle or just 2 adults and 2 kids. You can't find a perfect vehicle that does everything but only one that fits your style of camping. I wanted a DD that gets good gas mileage(40 mpgs) I would have liked to have a Jeep when exploring remote areas sometimes but would not want to use it every day with such poor gas mileage. So for me I bought a used 2002 Toyota Corolla 5 speed towed it for 70 k miles all over the US and Canada. I would buy used because it will get dinged towing. It gets 40 mpgs on the hwy and after 170 k on the OD miles and normal maintenance it has worked well as a tow car. I drove it on a lot of dirt roads in Alaska and Az and what I want in the next tow car is something that has a little more ground clearance and would still get 40 mpg for a DD. I will look at another small car sedan when replacing this one. All the ones I looked at had better ground clearance than the Corolla and got between 38-40 mpgs hwy. Chevy Cruse, Ford Focus, Elantra, and Versa all manual transmissions. Some come with 17 in higher aspect ratio tires as an option giving you even more GC.