- GM announced a fourth-generation EV platform in New York on Wednesday.
- It will use lithium-manganese-rich (LMR) batteries that reduce costs.
- The new EV architecture will result in EVs that are 15% lighter and 20% more energy efficient, GM said.
General Motors is getting ready to roll out a fourth-generation EV architecture with big efficiency and computing-power gains, the company announced on Wednesday at its GM Forward event in New York City.