Variable Valve Timing-Intelligence, or VVT-i, is a variable valve-timing system developed by Toyota that debuted in the 1990s. VVT-i uses input from sensors and driving conditions to improve engine ...

The redesigned IS further represents the core values that make the Lexus brand a standout--luxury and plushness. A number of innovative "technoid" features add to the ownership experience. The Smart ...

The 3.6 L V-6 on the 2008 STS is General Motors' first V-6 gasoline engine with direct injection. Combined with other powertrain changes including variable valve timing, the fuel economy of the STS ...

Toyota has made a name worldwide for fuel-efficient and powerful high-performance vehicles. Variable Valve Timing with Intelligence or VVT-i is Toyota’s name for the variable valve technology used in ...