The Mercedes-Benz W116 is a luxurious full-size sedan that was produced by the German automaker Mercedes-Benz from 1973 to 1980. It was the first production car to feature the company's new injected diesel engine, and it also had a number of other innovative features such as power windows and air conditioning. The W116 was available in four different versions: the short-wheelbase 250S, the long-wheelbase 280S, the fuel-injected 280SE, and the top-of-the-line 450SEL. The production of the W116 totaled more than 450,000 units, making it one of the most successful models in Mercedes-Benz history. Today, the W116 is revered by collectors and enthusiasts for its timeless style and impressive engineering.