1977 Mercedes-Benz 300 SD TurboDiesel

The Mercedes-Benz 300 SD TurboDiesel from 1977 was a landmark vehicle in the history of automotive engineering, marking the debut of the world’s first series production turbo-diesel car. Based on the W116 series S-Class, the 300 SD was equipped with a turbocharged version of Mercedes-Benz’s 5-cylinder diesel engine, specifically designed for the US market.

At a time when diesel engines were not widely embraced in passenger cars, the 300 SD's turbo-diesel engine showcased the potential for improved fuel efficiency and power. The turbocharger helped boost performance, while the diesel engine's fuel economy made it an attractive option for long-distance driving. The car’s refinement, safety features, and luxury characteristics, all synonymous with the S-Class, made it an appealing choice for those looking for an innovative and practical luxury sedan.

The 300 SD TurboDiesel was not only a significant technical achievement but also a sign of things to come, as it helped pave the way for the increasing popularity of diesel engines in passenger vehicles throughout the years. It remains a notable piece of automotive history for its role in establishing Mercedes-Benz as a leader in diesel technology.