Intended as a halo car, the Suburban, like all other Nashes, featured options such as “Cruising Gear” overdrive, a trend-setting “Weather-Eye” heater, and a remote control Zenith radio, which enabled the driver to change stations at the touch of their toe. Production was limited, with Nash selling exactly 1,000 examples between 1946 and 1948. A convertible was added to the Ambassador range for 1948, and an even 1,000 of this one-year-only body style was produced. The automaker allocated only one convertible to its major dealerships. The change to a new unibody design for the 1949 model year meant the end of the convertible body style until the compact-sized 1950 Nash Rambler. 1949-1951 Nash-Kelvinator president George Mason believed in fiscal responsibility, but also wanted to be "a bit daring, bold, and out of the mainstream" by making "cars noticeably different from those of the mainline Big Three producers." Nash's Vice President of Engineering, Nils Eric Wahlberg, had access to a wind tunnel during the war and believed that future cars should take advantage of aerodynamics to achieve many benefits. The company used revenue from its wartime contracts to develop a car that was "the most streamlined form on the road" and lower by than the previous designs. Mason was also a convert to build a large aerodynamically clean family car for the postwar market and even championed the design's enclosed wheels as a bold innovative feature. The resulting car reflected aerodynamic notions of its era, with a rear half resembling the 1935 Stout Scarab. Nash continued to use the Ambassador name on its top models 1949. The separate frame chassis of the 1941-1948 Ambassador was discontinued in favor of unibody construction for the 1949 models, a design the company introduced to the mass-market in 1941 with the 600 series cars. The Ambassador series continued to have a wheelbase and the automaker claimed the new chassis design included 8,000 welds making its "1 1/2 to 2 1/2 times as rigid as conventional cars." After Nash rolled out its Airflyte body style, Ambassador sales enjoyed a significant gain by selling just four- and two-door sedans in the 1949-1951 marketplace. They were manufactured at the Nash Factory (Kenosha, WI), and the Nash Factory (El Segundo, CA). The Airflytes also featured fully reclining seats that could turn the car into a vehicle capable of sleeping three adults. The 1950 Ambassador became the first non-General Motors