Landrover products except freelanders will pull 3.5 tonnes legaly. nowt else does
There are other 4×4’s with a 3.5t towing limit, but none of the pickups or soft roaders can manage it. You don’t even need a 4×4, this can tow 3.5t if you pick the right engine:
I have the same van in high roof and that will tow up to 2.8t, (and does regularly, a huge 2.8t horsebox) though probably not up a steep and slippery welsh lane. Its only a 2.3l rwd with a standard 5spd box after all 🙂
But seriously, consider a Diahatsu Fourtrak. They are bombproof, cheap and tow 3.5t. Just be careful you don’t by a workhorse that has spent its life towing cattle across someones farm or has been reversed into footwell deep salt water every week to launch a boat! It even looks like it means business…
http://cgi.ebay.co.uk/1995-N-Daihatsu-Fourtrak-Tds-Fieldman-Light-4×4-Utility-/110689028688?pt=Automobiles_UK&hash=item19c5948a50#ht_1043wt_1139