Sure, a 60-ton tank may offer the ultimate in firepower and protection, but when you need to get around quickly, the TARDEC ULV is your answer. This Ultra Light Vehicle (ULV) prototype is powered by ahybrid powertrain that consists of a Subaru turbo diesel engine, mated to a pair of electric motors, as well as a 1.4-kilowatt-hour lithium-ion battery pack. It can be equipped with a large range of weapons systems, including a small turret or a remote weapon station that enables a gunner to remain in the relative protection of the vehicle. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of a terrifying Swiss roller coaster.