were over 20% thicker and featured recessed center sections to protect license plates. Adjustable headrests were now available as an option for the front seats, an industry first. AMC touted the added comfort the headrests provided, as well as their potential for reducing whiplash injuries in the event of a rear-end collision. Other changes included the activation of the starter through the neutral pushbutton (on automatic transmission-equipped cars), and the addition of an optional "Powr-Saver" engine fan, which featured a fluid-filled clutch for quieter high-speed operation. The 1959 model year also saw the addition of an optional "Air-Coil Ride" air suspension system, utilizing airbags installed within the rear coil springs. An engine-driven compressor, reservoir, and ride-height control valve comprised the rest of the system, but as other automakers discovered, the troublesome nature of air-suspension outweighed its benefits. The option proved to be unpopular and was discontinued at the end of the model year. Ambassador sales improved considerably over 1958, reaching an output of 23,769; nearly half of which were Custom four-door sedans. Less popular was the hardtop station wagon, of which 578 were built. Second generation 1960 The decision to discontinue the respected names of Nash and Hudson resulted in the development of the second-generation Rambler Ambassador design. It was the only American midsize, luxury high-performance car offered in 1960. The "Ambassador by Rambler" was marketed by AMC as America's Compact Luxury Car. The 1960 model year lineup was totally reskinned, using new fenders, hood, deck lid, door skins, roofline, grille, taillights, bumpers, windshield, and backlight. Significant were the lower hood line, lower windshield cowl, simplified side trims, and egg-crate grille with stand-up letters spelling AMBASSADOR, while the tailfins were reduced in height and were canted to either side making for an integrated appearance, and the AMBASSADOR name repeated across the rear trunk lid. The overall effect was rather fresh, as the new roof had a lower, lighter look, to complement the lower fins and grille. The design changes and the new grille provided "a more expensive look". The 1960 Ambassador was available only with four doors in sedan and station wagon body types. The station wagons were available with two rows of seats for six adult passengers or with an additional rear-facing third row for an eight-passenger version. Additionally, a pillarless (hardtop) sedan, as well as a station wagon, were available in the top-of-the-line "Custom" trim version. Three trim