Automotive Powertrain Solutions KEMET Automotive Powertrain Solutions help deliver analytics and intelligence to the powertrain subsystem of a vehicle. Automotive powertrains require components that can withstand harsh temperatures up to +200°C and beyond. The powertrain subsystem of a vehicle is comprised of all the devices and systems in charge of the propulsion of the car. This includes the engine, transmission, energy recovery systems, electric motors, and their associated sensors and controllers.