Purchases of popular models like the Tesla Model 3 and the Ford Mustang Mach-E may no longer entitle buyers to tax savings because the cars do not meet tougher sourcing requirements.
Ford and other automaker have had to readjust their electric vehicle production plans because sales have been weaker than they had expected.
Two years behind schedule, the electric model has an unusual design that sets it apart from rival pickups, which could limit its sales.
Growth is brisk but slower than expected, causing automakers to question their multibillion-dollar investments in new factories and raising doubts about the effectiveness of federal incentives.
The company said it had reached the limit of what it could offer to the United Automobile Workers union, which has expanded its strike to Ford’s largest plant.
Carmakers are anxious to keep costs down as they ramp up electric vehicle manufacturing, while striking workers want to preserve jobs as the industry shifts to batteries.
The world’s largest carmaker dominates the sales of hybrid cars but has been slow to sell all-electric vehicles, alienating some customers and hurting sales.
The company is earning big profits on gasoline cars and trucks but is struggling to catch up to Tesla in the fastest-growing segment of the auto market.
Elon Musk’s electric car company is facing intensifying competition from newer Chinese automakers and established Western car companies.
Sales of electric vehicles have slowed recently partly because prices of some models like the F-150 Lightning had risen a lot.