It's not often that a deal that could save you thousands of dollars on a car has an expiration date. But be careful with your car buying decisions, experts say.

But used EVs coming off of leases will continue to come onto the used car market.

It is the end of the line for U.S. electric vehicle tax credits. Sweeping tax and budget legislation approved by Congress on Thursday means $7,500 tax credits for buying or leasing new electric vehicles will end on September 30,