$1,607,184
The Newmar King Aire 4521 sits at the top of Newmar's lineup for a reason: a 605-hp Cummins-powered Spartan K3 tag-axle chassis with Comfort Drive adaptive steering, OnGuard collision mitigation, and Mobileye lane tracking make the highway feel almost effortless at 45 feet. Outside, the full-paint Masterpiece Finish with cut and buff sets the visual tone, backed by stainless steel trim throughout, a passive entry system, and a built-in power washer with a 50-foot hot-water hose reel for easy cleanup. Storage is a genuine strength, with two power pass-through trays accessible from either side of the coach, and holding tank levels conveniently readable right at the exterior water works compartment. Owners consistently praise the King Aire 4521's solid build and smooth ride for full-time living and long-haul travel, and it's easy to see why Newmar made it their flagship.
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Class a motorhomes that share features with the King Aire 4521, like chassis spartan.
