sedans and the RT72 coupé feature the 1.9-litre 8R four-cylinder engine, unique to the Mark II. The RT63 sedan, RT73 coupé, and RT78/RT79 station wagons feature a two-litre 18R four-cylinder engine, also unique to the Mark II. The suspension setup uses double wishbone with coil springs at the front and leaf springs at the back with a front-engine, rear-drive powertrain format. The Mark II is longer, at over the Corona's length of for the sedan, and the coupe, with a width of in comparison to for the sedan and coupe. The height of the Mark II is lower at over for the sedan, but higher at for the coupé. For North America, the Mark II was available with bucket seats for the driver and front passenger, a center console with a floor-mounted manual transmission, electric rear window defroster, and a full size spare tire installed externally and underneath the cargo area on the wagon, with rear seats that fold down to a fully carpeted rear cargo area. The Mark II wagon was the largest wagon Toyota offered in North America, next to the Corona and Corolla wagons; the Crown wagon was no longer sold in North America. Corona Mark II GSS In September 1969 the Mark II hardtop coupe, called the "GSS" was introduced. The engine used is a DOHC "10R" based on 8R / 1,900cc (later renamed to 8R-G) with a maximum output of and a maximum speed of . Second generation: Toyota Mark II (X10, X20; 1972–1976) The second-generation was based on a new X series platform, thus abandoning the previous T series chassis. In Japan, the second-generation was renamed the Toyota Mark II, no longer using the prefix "Corona", while internationally the "Corona" prefix was still used. The X10s are sedans and wagons, while the X20 is a two-door coupé. The inline six-cylinder "M" series engine was borrowed from the S60 series Crown, in order to compete better with the Nissan Bluebird / Datsun 610 in North America, and the Nissan Laurel in Japan. The styling used on the second generation was dramatically different from the first, showing similarities to the S60 series Crown. The appearance reflected a popular styling trend that appeared during the 1960s and 1970s internationally, called "Coke bottle styling" which Toyota adopted for only this generation of the Mark II. In export markets, a version was sold as a wagon, whilst in the