ooo, treads. I completely forgot about them. funny thing is in the animation (still working on the link) the green bot bodychecks the red one and he kinda skid a few yards, probably because I didn't made them those treads :D
The heel is probably one of the most problematic area. I just noticed how plain and sphere-like if viewed from the back (right foot, red bot). I'll fix that too along with the treads.
Yep it's HDRI, and the background too, but blurred it focuses more on the bots. The HDRI map is one of those low-quality free ones anyway. Pixelation will be mucho problemo if I hadn't blurred it out.
glows are post on Photoshop, didn't know how to make them in 3D Max. Still looking for some tutorials on that.