RE: What is it?
Those that said custom would be right...it started out as some sort of old Ofna buggy, then I added the Savage gearbox (yup on its side) mated to the rear diff with a shaft from my Avenger buggy as well as the GS .21 engine. Tower hobbies batt box, Traxxas reciever box (actually a nice piece of kit!) custom engine/gearbox mount with a Savage engine mount , oh yea and Savage body posts.
Just ran it for the first time and it goes really well, just needs a few tweaks here and there (including shift point to second gear) and it should be an ok "Bitsa".