Here is a rugged autonomous robotic platform that can tow a car and carry a human. 0x-ALPHA comes with an on-board Intel Core i7 processor, WiFi, 9DOF IMU, and camera. It has 2 hours of battery life and supports various programming languages, including Python, C++, and Matlab.
The robot also has a differential drive system with continuous track. It comes with 8 ultrasonic sensors, 8 IR range sensors, and various other smart components.