US manufacturer General Motors (GM) has outlined its long-term plans to go 100% electric with its vehicles as part of a zero-emissions initiative. 

Over the next 18 months, the Detroit-based automaker plans to introduce two new all-electric vehicles based on learnings from the Chevrolet Bolt EV.  These two new variants will be part of at least 20 new all-electric vehicles that will be launched by the company by 2023.

General Motors product development, purchasing, and supply chain executive vice-president Mark Reuss said: "General Motors believes in an all-electric future.

“Although that future won't happen overnight, GM is committed to driving increased usage and acceptance of electric vehicles through no-compromise solutions that meet our customers' needs." 

"It involves a two-pronged approach to electrification that includes battery electric and hydrogen fuel cell electric depending on the requirements of customers."

According to the company, a zero-emissions future requires more than just battery electric technology. It involves a two-pronged approach to electrification that includes battery electric and hydrogen fuel cell electric depending on the requirements of customers. 

GM also introduced an emission-free variant called Silent Utility Rover Universal Superstructure (SURUS), a fuel cell powered, four-wheel steer concept vehicle on a heavy-duty truck frame that is driven by two electric motors.

The company added that SURUS can be used as a delivery vehicle, truck or even an ambulance because of its flexibility and architecture.