The 230SL has a dual-circuit brake system consisting of front disc brakes and power-assisted rear drum brakes. When buying the car from factory, you had the option of a 4-speed manual transmission, or a 4-speed manual transmission, paired with very responsive fluid, meaning no torque converter (this was popular among US models). The 230SL model was a 2,308cc / 2.3L M127.II inline-six engine with 150HP @ 5500rpm and 20.0 mkg @ 4200rpm torque.