be built as the Royale XQ and Diesel, while the Prince received the Senator A2's front end. All Korean-built shells, however, received a unique rear pressing with large, somewhat sloped rectangular taillights, which increased the length by about . The Royale Salon continued with the Senator A1 front end until it received a whole new front in 1987. The Royale Salon Super was introduced in 1986. However, unlike other Royales that utilised the Opel Rekord E2/Senator A2 hybrid with the four-window glasshouse design, the Salon Super used the six-window design from the Senator A. A second design revision came in 1987 with a new front-end design, featuring a revised grille and headlamps, along with minor trim changes. While lower-specification versions such as the Royale Salon retained the four-window design, the Royale Super Salon continued using the six-window design from the now discontinued Salon Super. The old-style XQ and Diesel received an all new front end of a smooth, upright, and rectangular appearance. 1989 marked another design change; the Royale Prince inherited a new grille insert and adopted the six-window glasshouse. From 1989, Daewoo introduced the top-of-the-range Imperial, which was marketed separate from the Royale range. Imperial production ended in 1993, replaced by the Daewoo Arcadia. Specification levels Daewoo Royale engines were four-cylinder Opel units, with Daewoo offering the Royale in several different levels of luxury: the Diesel, Salon, Duke, XQ, and Prince: Royale Diesel (May 1980–April 1989): As the Royale Duke Diesel from early 1987; fitted with Opel's 2.0-liter diesel engine. Royale Salon (September 1980 – September 1991): fitted with a 1979 cc engine and three-speed automatic transmission. This powertrain combination produced (DIN) and (DIN). Top speed was claimed at . Royale Salon Super: (March 1986 – 1987): this fully equipped model (digital dashboard, trip computer, EFI, etcetera) uses the Senator's six-window glass house. Royale Super Salon: (1987–1991): Royale Duke (February 1987 – March 1989): a new lower-end model fitted with a more modern 1498 cc engine. Royale XQ (August 1983 – 1987): fitted with a 1492 cc engine and four-speed manual transmission. This powertrain combination produced (DIN) and (DIN). Top speed was claimed at . Royale Prince (July 1983–June 1991): used the E2 bodywork, fitted with a 1897 cc engine and four-speed manual transmission. This powertrain combination produced (DIN) and (DIN). Top speed was claimed at . Daewoo Imperial (February 1989 – mid-1993): the Imperial was the ultimate development