This little robot has a very big heart. In these two videos it pulls a Hummer, and climbs some stairs with a human on its back. The secret to all this torque, is transmitting the power to the ground through those 4 independently moving tracks which help a great deal. The other problem I see is the battery, because I don't think you can do anything with it after any of these cool little tricks.

Here's a jeep climb that didn't go as expected. The car had too much torque, and the driver was too eager. Glad he didn't do something really foolish, 'cause he could've ended up dead. Amazing video, though!