In my opinion, I don't pay much attention to the vehicles listed as towable by the manufacturer. I look at the vehicle I want to drive when I arrive and then look to see whether it's towable unmodified, and if not, I go to Remco and see what they have. That's why I tow a Toyota 4Runner because it's what I want to drive. Remco's driveline disconnect has worked fine with 45,000 miles on the 4Runner and another 42,000 miles of towing, and it doesn't violate the factory or the extended warranty.
VW doesn't list the New Beetle as towable, either, but Roadmaster makes tow hooks for it and I've towed our 2002 with manual tranny 35,000 miles and driven it another 32,000 miles, with no problems.
Remco's options really do work and they give you a lot more options on what to tow.
Former Owner, 2006 36MDDS
2010 Arctic Fox 22GK Travel Trailer
2007 Toyota Tundra