If I won one...
Take the Hummer Hx.
Sell the Hummer Hx.
Buy a new X.
Have enough money left over for many thousands of miles worth of gas (depending on the H model & how loaded it was), and dinner out with the Lovely Mrs Wizard.

Or, y'now, pay the &%&$#^$#@&&(&%# income taxes on the prize, cuz you CAN'T forget the IRS...

I wouldnt mind driving a Humvee, but I'll pass on the civilianized version. And I just plain love the X!