the post war period, more automobiles would switch to unibody construction, which is now the norm for passenger cars and even many light trucks. Many of the ideas came from engineers from the former Nakajima Aircraft Company, which became Fuji Heavy Industries. The "suicide doors" are hinged at the rear, which Consumer Reports remarked could and did result in a partially locked door pulling open in the wind during testing. Performance Equipped with a 3-speed manual transmission, the 360 had a top speed of , and with a curb weight under 1000 pounds, the 360 was exempt from compliance with US safety regulations. Consumer Reports recorded a 0-60 time of about 37 seconds and reported , despite Subaru's claimed . When introduced in 1958, the 360's engine produced . By the end of production, power had increased to with a twin-carbureted engine optionally available, achieving 100 hp per liter. The performance and size limitations were largely the result of it having been engineered and designed for Japanese driving conditions, as the speed limits in Japan are realistically set at in urban areas, with average driving distances at per day. Variants Several variants were produced, including a station wagon (called the Custom), a convertible, and two sport models known as 1) the Subaru Young S, which had a slightly upgraded (EK32 "F") engine and transmission (4 gears instead of 3), bucket seats and a tachometer along with a black, white striped roof with a dent along the middle to put one's surfboard, and 2) the Subaru Young SS, which had all the Young S enhancements, but also the EK32 "S" engine with chromed cylinders and dual BS32 Mikuni Solex carburetors, producing - and 100 brake horsepower per litre. From 1961 onwards, a flat-nosed truck and van called the Sambar were also produced using the 360's engine, with arrangements similar to the Volkswagen Transporter in a smaller size. Many small businesses became very successful thanks to the pickup's small size for tight streets, quickness, ease to drive and great fuel economy. Available in Japan between November 1960 and 1966, an export version, known as the Subaru 450, increased the engine's displacement to 423 cc using the Subaru EK51 series engine. This model was also given the name Subaru Maia. The Maia variant was the sole sedan model imported into Australia (approximately 35 examples) in 1961 - along with approximately 38 Sambar vans