Here is a rugged open source robot platform ready for all your indoor and outdoor projects. It has a max speed of 8mph and range of 8 miles. Its payload capacity is 180lbs. The battery life lasts up to 5 hours. Its SDK gives you control over motor, data feedback, and charging power distribution.
The Pro edition comes with an Intel Atom processor, VGA camera, speaker, microphone, and LEDs. It is waterproof and can work on most indoor and outdoor surfaces.