They;re about the same length, but the GEO is a little closer to the ground than its tracked brethren.
The width is pretty much the same as well. The Matchbox vehicle I used as the basis for the G-E Ogre was the perfect size for this conversion.
I want to see how the GEO compares on the battlefield. I need to playtest it against the defenders in the Mark III attacking the command post scenario. Meanwhile, it looks pretty good next to another cybertank.