Do you really off road?
This subject has been covered under previous posts but I'll put my 2 cents in again. The GL is a hard vehicle to modify. I couldn't find offroad tires/wheels suitable, no lift kits, armor skids, etc. If you are wheeling around Utah, think MOAB, you will need all of those items to prevent damage. And then you added a 10 year requirement. I'll get flamed for this, but that turns the arrow towards a Toyota. I have a GL550 and a Land Cruiser. Long trips on the highway, GL only. Offroad adventures, Land Cruiser only. The Land Cruiser is a truck and drives like one. I'm hoping to get 15 years out of mine.
I did see a pretty custom ML350. A little smaller but this thing looked like it could go anywhere.




But he's right. Go Toyota land Cruiser (or FJ if you don't need much interior room), or go MB G-Wagen if you have the bucks....


