Advanced Classroom-Ready Robots : autonomous mobile robot platform
Configurable - IG32-SB4, 4WD All Terrain Robot Platform
Ubiquity Robotic's Magni – Highly Capable Robot Platform – Oz Robotics
China Custom Autonomous Mobile Platform Manufacturers, Suppliers - High Quality - RoboCT
Amazon.com: Premium TT04 4WD Intelligent Tracked Robot Tank Car Chassis with 4PCS TT DC Motors, Robotic Caterpillar Moving Platform with Metal Plate for Arduino, Raspberry Pie, Microbit Code Projects Science Kit :
mini – Rover Robotics, Inc.
Autonomous Mobile Heavy Duty Robot Chassis Platform Chassis Platform Kit | Fdata
Devastator Tank Mobile Robot Platform (Metal DC Gear Motor) - RobotShop
4WD Rover Zero 3 – Rover Robotics, Inc.
2 Wheel Robot Platform for Arduino from Sparkfun | Sector67