The Mercedes-Benz W 113 is a two-seat roadster/coupé, introduced at the 1963 Geneva Motor Show, and produced from 1963 through 1971. It replaced both the legendary 300 SL (W 198) and the 190 SL (W 121 BII). Of the 48,912 W 113 SLs produced, 19,440 were sold in the US.
The W 113 SL was developed under the auspices of Mercedes-Benz Technical Director Fritz Nallinger, Chief Engineer Rudolf Uhlenhaut and Head of Styling Friedrich Geiger. The lead designers were Paul Bracq and Béla Barényi, who devised its distinctive, patented, slightly concave hardtop, which inspired the "Pagoda" nickname.
All models were equipped with an inline-six cylinder engine with multi-port fuel injection. The bonnet, trunk lid, door skins and tonneau cover were made of aluminum to reduce weight. The comparatively short and wide chassis, combined with an excellent suspension, powerful brakes and radial tires gave the W 113 superb handling for its time. The styling of the front, with its characteristic upright Bosch "fishbowl" headlights and simple chrome grille, dominated by the large three-pointed star in the nose panel, paid homage to the then already legendary 300 SL roadster.

Production of the 230 SL commenced in June 1963 and ended on 5 January 1967. Its chassis was based on the W 111 sedan platform, with a reduced wheelbase by 30 cm (11.8 in). The 230 SL was offered with a 4-speed manual transmission, or an optional, very responsive fluid coupled (no torque converter) 4-speed automatic transmission, which was popular for US models.
The 2,308 cc (2.3 L) M127.II inline-six engine with 150 PS (110 kW; 150 hp) and 196 N•m (145 lb•ft) torque was based on Mercedes-Benz' venerable M180 inline-six with four main bearings and mechanical Bosch multi-port fuel injection.