This is the Heavily Modded Tumbler LEGO set. It is the official LEGO set in the Batman Line but with some... Cosmetic Surgery... I gave it: Suspention, Light-Up Cockpit(sorry, no pic), better Rims, Jet-Engine nozzel, Storage Hatches, a thrid set of Air-Breaks, and better Controls than just a Steering Wheel haha.
Very awesome. You did a good job at fixing the set (I was pretty ticked that it wasn't that accurate I mean those designers have every brick they could possibly want, and they seriously underperformed in my opinion.) Anyway, check out my Tumbler 9. It's amazing and has full working suspension.