15. Mercedes-Benz W123
Produced from 1976 to 1986, the Mercedes-Benz W123 series is renowned for its exceptional reliability and stately design. Over 2.7 million units were sold, with the 240D model being particularly popular among taxi services due to its durability. Many W123s have surpassed 500,000 kilometers with minimal mechanical issues, solidifying their reputation as enduring daily drivers. Their robust construction and longevity have made them cherished classics worldwide. (en.wikipedia.org)