The new Ford Ranger is towable four down and itís easy to engage tow mode and no battery to disconnect. On our last trip I towed it 8 straight hours with no need to do anything. Stopped, slept, woke up and did my walk around then back on the road for 4 more hours. Got to our park, unhooked and it started right up and we were off to site see. Itís quite zippy with the turbo charged ecoboost.
Honda CRVís, up to 2014 are good toads as well.
For a list of towable cars checkout Motorhome magazines dinghy guides.