5. Mercedes-Benz W123
The Mercedes-Benz W123 is celebrated for its engineering excellence and remarkable lifespan.
Built from the late 1970s through the 1980s, the W123 became a favorite among taxi operators worldwide, often surpassing 500,000 miles without major issues.
Its overbuilt components and attention to quality have made it a legend in automotive circles, proving that a well-made car can endure decades of demanding service.