Spark plugs, which screw into the top of an engine’s cylinders, create the electric spark required to ignite the compressed air-fuel mixture in gas-powered engines. The right type of plug and ...

I have driven the Chevrolet Spark EV and it's fast, faster than the regular 85-horsepower gasoline-only Spark minicar. For the driving experience alone, the Spark EV is a winner. My question to ...