my truck can legally tow 2.5T, as long as its braked, it says it on the tow bar and on the inside of the door.... i dont no what you are talking about.....
and yeap they are super hard to find in a 42tdi, it took me ages to find my one, i traveled to get it and payed the price for it, but in the end i got the best truck i could buy and i love it, takes the load for work, gose well, dosent drink fuel like my old Navara (4L v6), and tows the GTR like a dream. plus i got the ST model so its got all the electrics inside plus the carpet and sounds deader, and most of all Coil springs all round!!! not many utes that run that!! and if your worried about taking weight you just pump up the air bags with the on board compressor
: D