The Zero South team has been working on this vehicle for seven years (we checked it out at SEMA in 2008 and in 2010). The frame, suspension, axles, hubs, differentials, and the body are pure 1998 Hummer, the funky bodywork being from an insulated H1 ambulance, the uprated driveline from an armored H1. The original H1 used a 6.5-liter V8, but here that ICE engine has been swapped for a 3.2-liter turbodiesel
Called the Hybrid Polar Traverse Vehicles, the serial hybrids use that engine to power a 216-horsepower electric motor that juices up a 24-kWr battery stored in an insulated, five-foot-long battery box between the frame rails. That battery powers two 200-hp electric motors, one at each axle, that will keep the tracks going through the Antarctic December half-light.
We aren't sure what the second vehicle is based on, but its internals mirror the Hummer's, it has the exact same specs, and it looks almost the same except it's painted orange. They will pull a modified Airstream trailer called the "Snowstream," and are planning and eight-episode TV series as well as a feature film to document the expedition.