Hello Allen -- Welcome to the Forums! Seat of the pants I don't recall much favorable about either Land Rovers or Range Rovers from people who have towed with them. You are entirely correct that auto dealers are usually out of their league in discussing towing anything more than a small boat or popup camper. They
Here are only 2 threads among quite a few mentions:
http://www.airforums.com/forums/f463...ver-32799.html
Land Rover LR3 towing story
For more do an advanced search on the word
rover only but select the
Towing, Tow Vehicles & Hitches subforum.
The Rover Sport payload capacity looks pretty darned low -- 1070 to 1126 pounds depending on engine, optional equipment, etc.