This post is about a month overdue, but getting used to a new job,  base and house has kept me quite busy the last 30+ days.  In moving from  from FL to NM, I had originally bought the Touareg for just this  endeavor.  I wanted to tow one of our vehicles cross-country so that the  driving could be split between the Wife and I.  I ended up doing 100%  of the driving since the Wife wasn't comfortable at all driving with a  trailer on the back.  I decided to spring for the car trailer from  U-Haul instead of the tow dolly because our Jetta TDI was going to be  heavily loaded with odds and ends that were packed up at the last minute.
The  TReg did a great job with the extra 5,000lbs on the back.  U-Haul  recommends a 55mph speed limit, but after several hours of driving and  the rate I saw other trailers being towed, I was eventually comfortable  with a higher speed.  Despite the extra weight and having a thirsty V8  under the hood, I still managed 10.7mpg overall on the 1800mi trip.  The  only point at which I wished I didn't have a 5,000lb trailer behind me  was when we hit the Rockies.  Without a brake controller, mine were  working overtime on the descent and eventually wore to the brake  sensor.  Likewise, on the ascent, my NA motor was struggling to get up  some of the steeper inclines.  Not to say that it was difficult, just  that the lack of HP at the higher altitudes while towing was painfully  apparent.
I'll look to get a small trailer eventually  for carting around things that won't fit in the back of the TReg, and  maybe a tow dolly if I end up buying a fwd car to get my kicks on the  abundant mountain roads just a 20min drive away..

