Tow vehicle question, BMW X5? Options

[Part Pricer]

I'm looking at possibly picking up a BMW X5 as a daily driver and tow vehicle. Because of the tax laws, it makes a lot of sense to get something with a GVWR of 6,000 lbs or over. I'm also somewhat concerned with gas mileage. For this class of vehicle, the BMW X5 and the VW Touareq get the best mileage. There both nice vehicles. But, I would probably go with the BMW if it can meet my towing requirements.

The X5 with the 3.0 has a listed towing capacity of 6,000 lbs. I would be towing a Trailex open trailer that weighs just under 1,000 lbs loaded with a Boxster that comes in around 3,000 lbs. So, according to my math, I'd be pulling around about 4,000 lbs.

Am I missing anything here? Do you think it would fit my needs? Anyone else using an X5?

Thanks

[TimT]

Paul you have to add the weight of all the other "stuff" you will be hauling around.

Yourself, a passenger or 3, spares, tools, luggage, etc. Add all this up and you can easily approach the 6000 lb capacity of the vehicle. Bring a couple of fuel jugs along and that easily adds another 100 lbs to the equation..

If you haul near the max capacity of the vehicle you fuel mileage goes out the window ie my old V8 Explorer got 15-17 mpg on the highway usually, but when towing (6000lbs) the mileage went down to a7-9...

I just bought a F250 diesel that gives me 23 mpg while towing, its like driving a ship around town though...