You are smart to dolly tow. Your car will be safe up high away from rock strikes, saving mileage on the lower drive line, and the tow will be very easy and safe with Acme's disc surge brakes
I have towed several cars on my EZE-tow...from a 2 door Hyundai to a E150 fullsize van (dropped the driveshaft).
Every car I have towed has behaved very well on the EZE-tow. I believe that the very low load platform helps as well as the use of the car's steering for turns, make it work so well.
And, Acme has fantastic customer service. They just sent me -free- the new style lights to upgrade.
So, I say get the car that you and the Mrs. like best and the EZE-tow will tow it. We primarily tow a Hybrid Ford Escape (3500lb) and it has always been a joy to tow. We don't even feel a difference with or without the toad.
FYI, when driving at night, I turn on the car's parking lights so any local laws are covered that might require edge/marker lighting on the toad. The dolly lights are 50 State and Canada approved for turn and brake signals...the parking lights are just added safety.