UCTRONICS Arduino Based Robotic Four-Wheelers (DIY Multi-Function 4WD Car Kits), Raspberry Pi Based Robots, and Robotics Car Chassis and Platform
Robot platform controlled by ROS and Arduino - ROS Programming: Building Powerful Robots [Book]
AlphaBot2 robot building kit for Arduino (no Arduino controller)
2WD 210mm Car Chassis Robot Platform + 2 Wheels + 2 Motors Set Arduino | Robotics - Robot Building \ Arduino Robot Kits
2 Wheel Robot Platform for Arduino from Sparkfun | Sector67
Education Robot R2 Basic Platform Compatible with Arduino Micro Controller Learning Lovelytoy for Children - China Education Robot and Arduino Robot price
Arduino UNO R3 DS Wifi/Bluetooth Robot Car Kit - NaveStar