Homee, I have a 2006 Diesel [old shape] and before that I had a 2002 Petrol.
The diesel is by far the best tow car I have had. I also use it for business and have done over 50,000 miles in less than 2 years and except for servicing it has never been near a garage. The front tyres lasted 40,000 miles and the rears are still legal.
It tows my 1350kg MPTLM van well and I have never had a hint of instability. It is better than the petrol in that the power is available at lower revs. The delay in the rear wheel drive coming into operation is minimal and hardly any front wheel slip compared to the 2002 one. I am able to use 5th / 6th gears on the flat at the legal limit, in 4th it has plenty of power.
I get about 38 - 40mpg on solo driving and I somewhere around 28-30 towing.
I have to remove both the rear wheel cover and the alko stabaliser handle to hitch / unhitch but I have never found it a problem - just slide the handle back on to remove the tension on unhitching and aooly the tension on hitching.