2016 Airstream Interstate Lounge EXT Wardrobe, 2016 Airstream Interstate Lounge EXT Wardrobe For travelers in search of a versatile option for luxury travel with space and flexibility, the Interstate Lounge will have you feeling right at home. Find tremendous functionality, plenty of room to socialize, and sleeping accommodations you’ve only dreamed of.Two all-new floor plans, introduced in 2016 Lounge EXT models, replace the rear power sofa with a pair of twin beds. With four interior layouts to choose from, you’re in control.