There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

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 ...