The Mercedes-Benz W109 is a distinguished luxury sedan series produced by Mercedes-Benz between 1965 and 1972, known for its sophisticated engineering and elegant design. It featured the flagship S-Class models equipped with advanced technology for its time, such as air suspension enhancing ride comfort. The W109 typically features a long wheelbase and spacious interiors, making it a symbol of luxury and prestige in the mid-20th century. Collectors and enthusiasts admire the W109 for its blend of classic styling and innovative features within the Mercedes-Benz lineage.