From GoldenHVAC,
"A problem with another manufacture is that the front end is designed to hold up a bumper, and to crush in a accident. It is not designed to be pulled with a motorhome while transferring all the weight of the car to the front bumper frame area. So after a couple of front hitch plate falling off the car happened, that car manufacture said "No towing our cars"."
This is an interesting suggestion but probably not one with any anecdotal evidence to support the theory. I would assume that with the current state of liability claims in this country, towbar manufacturers wouldn't still be making the bars 10 years later. I did start out considering a Manx type Dune Buggy but I live in the Great Northwet and would need some sort of a top that doesn't appear to be available for them making them waterproof.
Warranty is not a big worry on a 10-14 year old car. I would really like to hear from someone who has actually towed a 2000-2004 New Beetle or why they decided against it. I see too many towed behind motorhomes for it not be feasable. Previous postings in this forum have claimed that it is possible with the 5 speed manual with a couple anecdotal stories about doing it with no problems. I'd also appreciate hearing if someone did it and had problems.