The 1978 Mercedes 300 Cd, also known as the W123, was a midsize luxury car that was manufactured by Mercedes-Benz. It was available as a sedan, a wagon, or a coupe.

The 300 Cd was equipped with a 3.0-liter, inline-six engine that produced 125 horsepower. It had a four-speed automatic transmission and a fuel economy of 17 MPG in the city and 24 MPG on the highway.

The 300 Cd was praised for its comfortable ride, high-quality construction, and luxurious interior. It was also considered to be a very safe car, thanks to its advanced safety features.

However, the 300 …