Airstream Interstate 24X: Class B RV Ready for Adventure By Perry Stern of AutoNXT | Going Off-Grid One of the cornerstone companies of the RV industry, Airstream is well known for building high-quality RV products, and best known for travel trailers with a distinctive shape and shiny aluminum exterior. About 15 years ago the company began offering the Interstate line of Class B RVs built on a Mercedes-Benz Sprinter van chassis. Recognizing that today more people desire to go off the beaten path for their camping experience, Airstream created the all-new Interstate 24X. Ready for off-grid adventures, the Airstream Interstate 24X blends a luxurious interior with off-road capability in a conveniently sized package.