Much like the Humvees that participated in last month's Head 2 Head, the Mercedes-Benz G63 AMG and G63 AMG 6x6 in the latest installment are some of the toughest off-road vehicles money can buy.

After selling about a hundred examples at half a million dollars apiece, Mercedes is winding up production of the insanely gargantuan G63 AMG 6x6 - and ... version of Benz's ultimate off-roader.

the Mercedes-Benz G-Wagen. Of course, this particular G has an extra axle, because it's the G63 AMG 6x6! Costing roughly twice as much as the awesome twin-turbo V-12 powered G65, the 6x6 is the ...