Honda CRV Dinghy

Before I posted to the Dinghy Forum, I thought I would try here because I think the question is specific. In my travels across the country over the last 8 years, I have seen many Views and Navions with a dinghy. It seems that the Honda CRV was the one I saw the most, so I asked. Because of weight considerations, towing four wheels down is best to conserve weight and then there is the inconvenience of the dolly. A friend had two Honda CRV cars, unfortunately one got totaled by a 'distracted driver'. The older one I think qualifies as a dinghy, but I'm not sure. Which model years can be towed four wheels down without modification? What about auto/manual and FWD/AWD variations? My friend's car is in real nice shape and it is one I would consider driving as a second car. He really likes the Honda, so if it would work as a toad, I would have to make an offer he can't refuse.