What GM’s idea for an EV with two charging ports says about the car market By: MarketWatch May 31, 2022 at 05:01 AM EDT While car makers often file wacky-sounding patents, like a fragrance system that can also dispense tear gas, this one isn't so weird. Read More >> Related Stocks: Alphabet-A Ford Motor General Motors Honda Motor Company ADR Tesla, Inc. Toyota Motor Corp Ltd Ord ADR