New details are emerging, however, about what powertrains will be allowed after 2035. In the current plan, range extenders — small combustion engines that give batteries more range — will count for a further emissions reduction than plug-in hybrids, which have both a combustion engine and an electric motor.
Essentially, the scheme would give automakers more emission credits for range extenders than plug-in hybrids because they emit less CO2 than the hybrids, two officials said.
The 2035 reform is part of a broader automotive package being put forward by the Commission on Tuesday that will include a new regulation on greening corporate fleets — vehicles owned or leased by companies for business purposes — and an automotive omnibus that was obtained by POLITICO.
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For the 2035 legislation, automakers will be allowed to pool, meaning that a brand that doesn’t meet the 90 percent target can buy credits from an automaker that over delivers.
The pooling scheme is a lucrative business for all-electric manufacturers like Tesla.
A separate initiative will focus on boosting small electric vehicles — a demand put forward by Commission President Ursula von der Leyen in her State of the Union address in September. Companies that produce the small cars would get a coefficient of 1.3 in the target calculations. So if a carmaker sold 10 of the small EVs, they would get the emissions credit of 13 cars.

