The Volvo Amazon was a mid-size car manufactured and marketed by Volvo Cars from 1956 to 1970 and introduced in the USA as the 122S at the New York International Auto Show in April 1959. The Amazon shared the wheelbase, tall posture and high H-point seating of its predecessor, the PV and was offered in two-door sedan, four-door sedan, and five-door wagon body styles. In 1959 Volvo became the world's first manufacturer to provide front seat belts as standard equipment... - by providing them on all Amazon models, including the export models - and later becoming the first car featuring three-point seat belts as standard equipment. Original specifications for the Amazon included the new Volvo B16 engine, a 3-speed manual gearbox (H6) and rear-wheel drive. In 1958 the sport model, Amazon Sport, was released and later the same year the Amazon became the first series produced car with a three-point safety belt in the front seats as standard. In 1962, Volvo introduced a two-door version, a five-door wagon, and the new B18 engine, deleting two-tone paint and upholstery. In 1965 the Amazon color-coordinated embossed vinyl upholstery and door panels became available. The new gearbox selections were the three-speed M30 (briefly offered with an automatic electric clutch), the four-speed M40 and the M41 with four-speed and overdrive. The M31 gearbox was also introduced in 1961 but was only available that year (a three-speed fully synchronized gearbox with overdrive on both second and third direct gears). Gearbox options on the 121 were the M30, M31 and M40 while gearbox options on the 122S were the M40 and M41 gearboxes.