12. Mercedes-Benz W123
The Mercedes-Benz W123 is often hailed as one of the most durable cars ever built, thanks in large part to its legendary diesel engines.
Produced from the late 1970s to the mid-1980s, the W123 became famous for its ease of maintenance and robust components.
Many of these vehicles still operate globally, frequently appearing on high-mileage lists with odometers showing well over 500,000 miles.
Its timeless design and durability make it a true classic.