I have a 07 LR3 that I tow my X2 with. I don't have any problems towing unless there are alot of hills and then it really gets a workout. But since I live in central Illinois I really don't have to worry about it.
Just to give you a heads up unless land rover changed things you may have to change the led lights out on your trailer with the old style bulbs. If you don't your trailer light will flash all the time. I had this problem and took it back to the dealer and told them they wired something wrong. They told me it was correct and had no idea why they flashed it must be a problem with my trailer lighting. I did a search online and found the problem and changed out the lights and everything works fine.