Here you can find completely stock Tamiya Juggernaut.
This is a big toy that can give you lot of funny hours, but, in my opinion, if you don't modify it, it remains only a big toy.
The plastic body is great in details and realism, perfect to be mount on other cars or trucks.

Twin motored, four wheels drive, four wheels steering, alluminium chassis: a good start for modifying it into something amazing.
4ws is provided by a single center positioned servo.

Pics are the official ones from tamiya.