Pop open the hood on a Ferrari 250 GTO (if you happen to own one or are part of a team that restores these $70-million cars when they go up in flames), and you'll see a 300-horsepower V12 with six ...

Though it's rare and might be considered an oddity by some enthusiasts, the inline-five has proved its worth on numerous occasions, particularly under the hood of these iconic performance cars. Follow ...