Mercedes-Benz aims to have at least one electrified vehicle in each segment by 2022.
Daimler has apparently decided the smart brand will have an all-electric future in its home market.
"Smart is already completely electric in North America and the changeover will take place in Europe by 2020," said CEO Dieter Zetsche at the company's annual shareholder meeting.
The company plans to ramp up its battery-powered push, aiming to offer an electrified vehicle in every segment by 2020.
"We are electrifying our vans, trucks and buses. And we have many more plans - also going beyond our products," Zetsche added.