4WD Default GoKart

Took the deafukt gokart to start learning. So I added a rear diff and made it 4WD To improve: maybe use less space It has no front diff To add: 2speed transmission new: I changed the front wheels and it turns way better, but it also flips easier, thats just the lack of suspension, maybe I could make it wider so it doesnt flip that easy but i think its good by now (The output of the motor its kinda weird because im trying to add the transmission, but as it is it could be just a straight line instead of what i did)