It's pretty much a matter of setting up a weight-distributing hitch. Some vehicles can use off-the-shelf, others need fabrication.
Below are some lash-ups by CAN AM RV. The TT's weigh from 6k to 9k. All of these vehicles are "rated" much lower.
http://cdn.airforums.com/forums/atta...3&d=1251248118
Jaguar Towing Airstream
Click on and read "Hitch Hints". More of those are online as well.
What Andrew Thomson does is no different than what we did in the 1960's and later. But with greater expertise comes better, more capable set-ups.
There is a very good range of vehicles that can be set up properly. Define for yourself exactly what you would need so far as towing is concerned.
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