The lifespan of a Mercedes-Benz or any car, for that matter, depends on various factors, including how well it's maintained, how frequently it's driven, and the driving conditions it's subjected to. In general, a well-maintained Mercedes-Benz can last for many years, and some models have been known to run for more than 200,000 miles.
Compared to a cheaper or lower quality car, a Mercedes-Benz can potentially last longer due to higher quality materials and components used in its construction. Mercedes-Benz vehicles typically feature advanced engineering and technology, which can contribute to their longevity. Additionally, many Mercedes-Benz models are designed with luxury and performance in mind, which often means they're built with higher-quality materials and are subject to more rigorous testing and quality control standards.

