Italian driver Ugo Sivocci first put a four leaf clover, or "Quadrifoglio," on his car for a race in 1923 hoping to end his streak of coming in second place.

Explore the ultimate inline-6 vs. V6 showdown! From legendary straight-six engines like the Toyota 2JZ to modern twin-turbo V6s, we break down performance, sound, tuning, and which six-cylinder engine ...

Take a look at these stunning Alfa Romeo car images and download free Alfa Romeo HD car wallpapers in high resolution.