20 Times the 90s Car Scene Predicted the Future — and No One Listened

12. Variable Valve Timing: BMW VANOS

BMW’s introduction of the VANOS system in the early 90s was a game-changer for engine performance and efficiency. By adjusting valve timing dynamically, VANOS delivered smoother power and better fuel economy—technology that quickly became an industry benchmark. Today, nearly every automaker uses some form of variable valve timing. Discover how it works at BMW Group.