At present our robot have only 2 motors (2-Wire Motor 393) that power and drive 4 wheels (3.25" traction wheels) on each side.
Someone suggested us to change such to use 4" Omni wheels and each wheel to be powered by its own motor - total of 4 motors.
How will this help us? Will it increase speed of robot? Will it increase the push power (torque) of our robot or both? Or something even better?