14. BMW 540i (E39, 6-Speed)
The BMW 540i (E39, 6-Speed) is the definition of understated performance. This executive sedan came equipped with a robust V8 engine and a rare manual transmission option, making it a true driver’s car. With its businesslike demeanor, it often flew under the radar, yet its pace was so impressive that it could nearly match the legendary M5 in real-world conditions. Road & Track praises its sleeper credentials and balanced handling.