Life Line Emergency Vehicles' Highliner is available in 154-inch or 171-inch body length. The Highliner is available with a Freightliner FL50, FL60, International 4300 or 4400 chassis. The Highliner includes 20 standard interior cabinets, six standard exterior compartments, a fully integrated microprocessor-based electrical system and an interlocking double aluminum insulated floor. The vehicle also includes a 3-inch thick labyrinth style compartment and patient doors providing vault-like strength and an air tight seal. The ambulance body is surrounded by a ridid two-piece aluminum extruded crash rail.