House Republicans have proposed a budget bill that would end the $7,500 tax credit for electric vehicles, potentially hurting automakers like G.M. and Ford.
The bill would also remove a $4,000 credit for used electric vehicles and impose restrictions on other tax breaks for automakers investing in new battery plants.
Analysts predict a surge in electric vehicle sales as consumers rush to benefit from the tax credit before it is eliminated, but sales may slow down once the credits are discontinued.
Research firm Cox Automotive estimates that electric vehicles could account for almost a third of new vehicle purchases by 2030 if tax credits remain unchanged, but the proposed changes could significantly impact adoption rates.