Ever hopeful that one day you will be able to take part in an adult conversation on this Forum I will answer your question. It would be nice if you could do me and the other contributors the curtesy of a well mannered responce.
The compromise I am talking about is the fact that saloon cars are designed in the main to transport passengers from a to b.
The first 4x4's such as the Willys Jeep of WW2 and MASH fame were designed to do this as well as tow equipment behind. This requirement neccesitated the four wheel drive as the military required competence in all situations.
The first Land Rovers were copies of the Willys Jeep and were demonstrated to Farmers as being able to tow trailers with livestock/supplies to market as well as pull a small plough!
Such a competant dual role was important in the years after WW2.
Modern 4x4's have drive to both wheels (an obvious point I grant you Kanga but in your case the obvious is not always as clear as it is too others), usually a two wheel drive option for road use - but not always so, a low range gearbox and some kind of lock for the centre dif.
None of the above are available on saloon cars tho' All Wheel Drive is getting ever more popular as the safety and greater towing ability over normal 2 wheel drive cars is demonstrated. Excellent cars like the All wheel drive Subaru's are truly excellent tow trucks but can come unstuck in the more difficult off road conditions.
Finally, towing with aa ordinary saloon car puts far more strain on it often requiring suspension upgrades. Most people would not wish to buy a saloon that has a tow hitch attached as it indicates more strain applied to the vehicle than one that has never towed anything.
My view -Why bother? Get a far more practical, stronger better designed for purpose 4x4. Land Rovers in general are designed to be able to perform in extreme conditions whilst towing heavy loads - Whe else do you see them so regularly on the telly - performing well in all parts of the globe.
If they can do that, towing a caravan is not going to phase them one jot.
The fact that I am not alone in preferring a 4x4 to tow (not just a caravan) is confirmed by tghe latest tyre sales figures for the UK. Over the last 5 years 4x4 tyre sales have increased 151%. This reflects the fact that more and more 4x4's are being used. In 2000 825,000 4x4 tyres sold, in 2004 1.25 million.
Quite the opposite of what the "anti's" would have us believe, 4x4's are ever more popular.
Isn't that just GREAT!!!