Better steering and faster bit.

[bwsk8]

Where did you buy those and how much $.

[AUDI-TT]

well the motors in these r bigger so theyre made for torque not speed, i guess if u put a higher rpm motor in it, it would help the speed significantly, but im not sure since i havent tried it! Where did u fit 4 batts???????

[Stridex]

Here's a pic. I have a custom hatchback on it for a body.

EDIT:
My bad...the two additional batteries weren't connected properly. Once I got them connected and charged on the AC charger, the thing did wheelies. It's double the speed and torque. A must mod for these things. Not that they're a bad micro in stock form.