Set in place on the new steel crossmembers, blocks of urethane (spacers) are added between the floor of the cabin body and the steel members to dampen vibrations. The cabin is bolted to the truck chassis using one-inch-diameter Grade-8 bolts. Polyisocyanate, a foil-backed rigid foam made from at least nine percent recycled content, is bonded to the interior camper walls, providing excellent insulation. The interior is finished with maple panels. To further augment the already impressive thermal characteristics of the body, EarthRoamer installed dual-pane German-engineered windows with integrated shades and bugscreens.

Under field operations and living conditions, the choice by EarthRoamer to use only diesel (no LPG, no genset) pays huge dividends. The total standard diesel-fuel capacity is 59 gallons with an optional upgrade to 90. Not only does this fuel the Power Stroke, it's also the fuel source for heating and cooking. A hydronic-style system provides heated house water (fresh-water tank capacity is 85 gallons) and is a way to preheat the Power Stroke under extremely cold conditions. The central heating system uses a diesel-fired furnace that's ducted to the wet bath and the living area. Diesel fuel is used for the ceramic cooktop. Diesel is a popular choice in the marine industry due to its safe, low flash characteristics.

The galley includes a 12-volt DC-powered 7.0-cubic-foot refrigerator/freezer, a convection microwave oven, and a coffeemaker. And, a departure from conventional wisdom in the RV industry, all of the 110-volt power is provided by an absorbed glassmat battery pack and a 2000-watt inverter. The battery pack is charged by the dual alternators on the Power Stroke and by the massive solar-cell configuration that dresses the roof of the EarthRoamer. The battery pack is capable of powering the 6000-BTU side-mounted air-conditioner for several hours before charging is required. The unit comes equipped with a 30-amp shore-power cable when that resource is available.

While this unit can navigate through primitive back-area venues and stand alone in challenging environments, it also provides the creature comforts of home. The XV-LT offers plenty of standard luxury appointments. The galley countertop is fiberglass-reinforced thin-slab granite. It's low-maintenance, elegant, and weighs about as much as the Corian most RV makers use. The truck sleeps four comfortably. There's a cab-over king-size bed and the dinette converts into roomy sleeping quarters. The wet bath has a marine-style cassette toilet, shower, and lavvy, and every unit features an outside hot/cold shower. The holding tanks can carry up to 26 gallons of gray water and five gallons of black water. Don't fear that five-gallon capacity, though. The cassette toilet is removable, with wheels and an extendable handle. This allows waste to be dumped into a conventional toilet, pit toilet, or dump station. It's quick and easy to empty, and you're no longer tethered to an RV site for a dump station.

Inside the house of the EarthRoamer, audio and electronics options include a DVD/CD player with a 15-inch LCD television, two speakers, a four-channel amplifier, and in-motion satellite TV. The cab can be equipped with a state-of-the-art sound system, GPS navigation, and a backup camera. Additional overcab storage is available, as are HID off-road lights, a 16,500-pound electric winch in the front, and a 9500-pound winch in the rear.