If you're a member of the Family Motor Coach Assn. and receive their magazine Family Motor Coaching it also has an annual tow car guide. You do have to be aware that the various automobile manufacturers have been changing their transmissions which affect towability. For example, our 2004 MDX is towable but the 2005 is not. The final source is the specific car manual and it's usually under something like recreational towing but you need to read carefully because sometimes they're talking about the car towing something like a trailer and sometimes they're talking about the car being towed behind an RV. In any case, most salespeople are not very aware of the towing issues we encounter as RVers. One time we asked a salesperson about the transfer case of the car we were considering and he asked "what's a transfer case?" At least he asked! But we knew he wouldn't be much help.
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