World's biggest driving machines
To read more about the machines, cool facts like weight and height (very interesting reading!), just click the link above, it will take you to the full MSN article. I wanted to post the truck pics here.
Caterpillar 797F
Komatsu D575A
LeTourneau L-2350 
Big Bud 16V-747
Hitachi 'Big Bertha' tunnel boring machine
