12. BMW 3 Series (E30/E36)
The BMW 3 Series models, especially the E30 and E36 generations, have earned a cult following for their blend of mechanical simplicity and driving enjoyment.
Many examples have crossed the 500,000-mile mark, a feat well-documented in enthusiast forums and articles like this BMWBlog feature.
These cars prove that with diligent care, even a sporty, performance-oriented sedan can deliver extraordinary longevity and reliability.