The end of federal EV tax credits jazzed overall sales in July, August and September. But with EV sales likely to plummet, the industry faces increasing headwinds.

The Department of Energy said the U.S. is taking a 5% equity ownership in Lithium Americas, a company that’s working to open up one of the world’s largest lithium mines at Thacker Pass in Nevada.

Overstocks mean car shoppers are taking advantage of deals and a good selection, but that may change as automakers slow down production.

Price dips and and an expansion of models to choose from contributed to the boost in third-quarter purchases.

EVs account for about 5% of car purchases, according to automotive website Edmunds. Rivals to Tesla are making inroads.