One of the pictures in the brochure had it towing the M777, The one I drove had 5 tons of steel plate bolted in the back to give the drivers a demo of how it would perform off road when loaded. It is rated at carrying 7.1 tons off and 15 on, so it would squeeze a bunch more life out of the HLVW fleet as well. The one I drove with weight pulled an unofficial 0-50mph in about 12 seconds, going by my watch down a long straight road with a bit of a rise. I was also able to climb a 24 inch concrete step by pulling right up to it, engaging the 6 wheel, and then pressing on the gas. The engine is a Cat "c-9 or c-12"??? I don;t know if that makes any sense, but hp numbers were 425 and torque was around 1500. I also liked the limp home capability. The marines are only ordering every 6th one with a spare tire mounted, all the rest upon receiving a flat that the CTIS can't cope with, are treated to a bar being inserted into the suspension arms and then being twisted like a giant bolt. This compresses the suspension, raising the wheel with bad tire off the ground, and then the vehicle "limps" home. The truck was also very smart, there wa s a computer in the cab, that did a proper DI upon starting, much like in the new silverado's and stuff, only smarter. It would tell you when you had a faulty driver. The cab on the one I drove was made by DEW and was armoured against 7.62 AP