Fumes ehh. Personally, I've never coasted down a hill coming back Vegas in the M5 because I was too arrogant to stop and get "cheap" gas Dog on a diet...oh, the things we do to make it work! I'm 6'4", 240lbs and I have a Yorkie, so I think I know who needs to go on a diet before I hit the track

I'm not sure what the tongue weight is on the X5, I'll have to take a peak in the owners manual. The Euro hitch that I wanna get allows around 5100lbs, but I'm only going to be towing 700lbs tops...motorcycle, trailer, gas and rubbers.

The in-garage one would be nice, funny how it gets smaller yet costs more I guess I should feel lucky that I have a dogrun on the side of my house that I converted to thw storage area for my truck and trailer.

If you found the guy who tows the Airstream, maybe you can PM him and ask him to come throw his .02 on here. The only different radiators i've seen for the V8 is from Zionsville...all aluminum, electric fan w/ shroud and intergrated expansion tank. Trans cooler and upgraded pads would probably be a good idea also. The X5 is capable, but there is so few poeple who use it in this way, so a lot of this is experimentation.

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