......... so that's why everyone's bot seemed so much bigger than ours...
just kidding.
Well see, I figured since most of you were in the states (in Canada myself), I had to take the exchange rate into account.
But yeah, all four wheels are driving. And what I'm doing is developing a crab drive for the robot, so I can choose which wheels turn the robot, so depending on how we build the robot, we can make the software choose to orientate the wheels to turn either with the front/back or the side wheels.