![1963 Mercedes-Benz 300 SEL W112 (Automatic / 4 Gears) RWD [1963-1965]](https://i0.wp.com/i0.wp.com/autogalactic.al/wp-content/uploads/2026/01/abc-w109_300se_6_3_1.jpg?fit=700%2C400&ssl=1&resize=360,270)
The 1963 Mercedes-Benz 300 SEL marked the introduction of the long-wheelbase (L-Lang) variant in the W112 series, becoming the most prestigious and abundant limousine of the time. This vehicle is powered by the M189 engine, a 2996 cm3 Gasoline engine with aluminum block and mechanical injection Bosch, which produces 160 hp / 158 hp/ 117.5 kW at 5000 rpm and a 251 Nm torque at 3800 rpm. With a 100mm increase in wheelbase to offer maximum space for rear passengers, this model comes equipped with a 4-speed automatic transmission and legendary pneumatic (airborne) suspension. Although the weight was increased to 1,600 kg , the 300 SEL reaches a top speed of 180 km/h and offers a level of refinement that made it the preferred choice of diplomats and state leaders.