The 1992 Mercedes-Benz SEC belongs to the W140 series and is the two-door coupe version of the S-Class. In 1992, the Mercedes-Benz SEC made its world premiere at the Detroit Auto Show, and two months later made its European premiere at the Geneva Motor Show. Initially, two versions were launched, the 500 SEC and 600 SEC, whose powertrains were similar to those of the corresponding W140 series sedans. In 1993, Mercedes-Benz renamed all of its model lines, and the SEC models were designated as S-Class Coupes, for example the 600 SEC became the S 600 Coupé. In March 1994, at the Geneva Motor Show, Mercedes-Benz introduced the S 420 Coupé as the entry-level model of the SEC series, equipped with a 4.2-liter 4-valve V8 engine.
In May 1995, the S 600 Coupé was the first to be equipped with a newly developed 5-speed automatic transmission, which featured a slip-controlled torque converter, lock-up clutch, and electronic control unit, reducing fuel consumption and being lighter and more compact. At the same time, the S 600 Coupé also offered the Electronic Stability Program (ESP) as standard equipment for the first time.After 1996, Mercedes-Benz renamed the SEC models as the CL-Class, and in 1998 this model was discontinued. During its 6-year production run, Mercedes-Benz produced a total of 26,022 SEC models, of which 8,573 were V12 600 SEC units, while 14,953 500 SEC units were produced.
