Meet the RobotGeek Geekbot: a programmable rover with a modular design that can go as fast as 0.4mps and carry load up to 1kg. The unit uses a 2200mAh rechargeable battery. Thanks to its Arduino based Geekduino Microcontroller, you can expand the robot with additional sensors and parts.
The GeekBot is a wonderful platform for educational projects. It is designed to work on flat surfaces. You can also mount a GoPro camera onto it.