There are plenty of powerful UGVs available these days. We are seeing more them getting their own drones to take on even more tasks. The Komodo UGV Robot is the latest one that integrates with a quadopter. The drone provides the Komodo with an aerial view of its surroundings. It can help the vehicle improve its position and orientation.
RoboTiCan, an Israeli company located in Beer Sheva, is behind this idea. More info is available here.