Switches and Sockets
These components need to be strong, light, and low-friction. Plastic is a perfect material for the job. Low friction plastics, like Acetyl, can be used in steering column switches. Using plastic means these switches require less maintenance than metal.
Then there are the places where metal can’t take the heat. Nylon works well under the hood, and can stand up to hot motor oil when built into the gearbox. Sockets made from high performance plastics can withstand high temperatures and resist corrosion.