This is a mecha I've had around for years in cruder form, which I recently
did some work on to make it more articulate.  It's a work in progress, as
I'd prefer it to have a profile no larger than the m1a2 model I posted
recently.  For the time being, it's rather large for something I'd
envision as a urban reconnaisance vehicle.

The round lump on the top of the vehicle is supposed to be a swivelling
camera, with another round lump on the underside back of the vehicle to 
cover the blind spots.  The smoke grenades on the side are an idea I got
from either mladen or some other mecha person.  There's a FLIR sensor on
the top right of the hull, and a camera mounted right over the gun
(whether that's wise or not).  The rear left of the hull has a ladder the
minifig can use to access the top hatch, and the cockpit is crammed with
as many detailed tiles I could put in there without trapping the fig
inside.  I like to think of the gun as being similar to the 25mm cannon
that exists on the Bradley.

I called it Road Spider because the wheels orient it toward hard surfaces
and it's a spider-tank.

http://www.cs.ndsu.nodak.edu/~pratt/