Many new cars come with automatic engine start-stop. These systems are designed to save the fuel wasted at idle by turning the engine off when you come to a stop. These systems are becoming more and ...

Many drivers wonder if they should turn off their engines while waiting at red lights to save fuel. Research shows that turning off a warmed-up engine for stops lasting just 10 seconds or longer can ...

F1 power unit manufacturers’ development has been opened up again after a four-year engine freeze, but what are the constraints on upgrades? With F1’s hybrid power units restricted from ...