From the Manufacturer:

Beyond the sleek, streamlined body andmptuous interiors, you’ll find superior
engineering and technological excellence. The Mercedes-Benz Sprinter chassis is built to Airstream’s unique specifications to deliver the most highly advanced, state-of-the-art systems on the road today. For safety, performance, unsurpassed quality and unbeatable durability, the Airstream Interstate is second to none. Those who roll with the best, roll with the Interstate.