General Motors and Stellantis paid a mixed $363.8 million in penalties for failing to fulfill federal fuel-economy requirements for vehicles and vans they produced in earlier years, in response to federal authorities paperwork posted on Friday.

G.M. paid $128.2 million for failing to fulfill the targets with the sunshine vans it bought in 2018 and 2019, in response to paperwork revealed on the National Highway Traffic Safety Administration’s web site. Stellantis, the corporate created when Fiat Chrysler merged with the French automaker Peugeot SA, paid $235.6 million for vehicles it bought in 2016 and 2017.

G.M. paid its effective in December, the paperwork confirmed, whereas Stellantis made funds in December and May. The funds had been first reported by Reuters.

The fines stem from years earlier than every firm began producing electrical and hybrid automobiles in vital numbers. The penalties had been levied underneath the company common fuel-economy requirements which might be overseen by the security company.

The gas economic system requirements date again to earlier than electrical automobiles and hybrid vehicles had been extensively obtainable. For a few years, automakers routinely paid fines for falling wanting regulatory targets. But the penalties had been usually a lot smaller than the sums that G.M. and Stellantis just lately paid.

In current years, G.M., Stellantis and different automakers have averted paying fines by buying fuel-economy credit from producers that produced electrical or different zero-emission automobiles. G.M. had beforehand lined its 2016 and 2017 penalties with credit, however it elected to pay fines in 2022, the federal paperwork stated.

G.M. and Stellantis, together with most different automakers, are speeding to roll out new electrical fashions and count on a majority of the automobiles they promote to be electrical inside a decade.

Stellantis stated it was investing $35 billion to develop battery powered automobiles and associated software program, planning to supply 25 electrical fashions within the United States by 2030. The penalties it paid mirror “past performance recorded before the formation of Stellantis, and is not indicative of the company’s direction,” the corporate stated in a press release.

G.M. has stated it hopes to provide 1,000,000 electrical automobiles yearly by 2025, and to finish manufacturing of combustion engine automobiles by 2035.