Another MOC, I think Sariel built one similar in different scale. It has leaf springs, 2 L motors, servo and I will try to put a functional invented V8 engine. I saw very helpful to use the sliding 8th gear in the front axle. It is very fast, I can still slow using 8th gears in the motors. I will try to do the one in the pic of course in technic style.
http://www.youtube.com/watch?v=Zaig2TfcWL4&feature=youtu.be '>http://www.youtube.com/watch?v=La-uusEo2yE&feature=youtu.be