With so much demand, carmakers have little reason to target budget-minded buyers. Economy car stalwarts like Toyota and Honda are not yet selling significant numbers of all-electric models in the United States. Scarcity has been good for Ford, Mercedes-Benz and other carmakers that are selling fewer cars than before the pandemic but recording fat profits.

Automakers are “not giving any more discounts because demand is higher than the supply,” said Axel Schmidt, a senior managing director at Accenture who oversees the consulting firm’s automotive division. “The general trend currently is no one is interested in low prices.”

Advertised prices for electric vehicles tend to start around $40,000, not including a federal tax credit of $7,500. Good luck finding an electric car at that semi-affordable price.

Ford has stopped taking orders for Lightning electric pickups, with an advertised starting price of about $40,000, because it can’t make them fast enough. Hyundai advertises that its electric Ioniq 5 starts at about $40,000. But the cheapest models available from dealers in the New York area, based on a search of the company’s website, were around $49,000 before taxes.

Tesla’s Model 3, which the company began producing in 2017, was supposed to be an electric car for average folks, with a base price of $35,000. But Tesla has since raised the price for the cheapest version to $47,000.

pass the House, would give buyers of used cars a tax credit of up to $4,000. The used-car market is twice the size of the new-car market and is where most people get their rides.

But the tax credit for used cars would apply only to those sold for $25,000 or less. Less than 20 percent of used electric vehicles fit that category, said Scott Case, chief executive of Recurrent, a research firm focused on the used-vehicle market.

The supply of secondhand vehicles will grow over time, Mr. Case said. He noted that the Model 3, which has sold more than any other electric car, became widely available only in 2018. New-car buyers typically keep their vehicles three or four years before trading them in.

SAIC’s MG unit sells an electric S.U.V. in Europe for about $31,000 before incentives.

New battery designs offer hope for cheaper electric cars but will take years to appear in lower-priced models. Predictably, next-generation batteries that charge faster and go farther are likely to appear first in luxury cars, like those from Porsche and Mercedes.

Companies working on these advanced technologies argue that they will ultimately reduce costs for everyone by packing more energy into smaller packages. A smaller battery saves weight and cuts the cost of cooling systems, brakes and other components because they can be designed for a lighter car.

You can actually decrease everything else,” said Justin Mirro, chief executive of Kensington Capital Acquisition, which helped the battery maker QuantumScape go public and is preparing a stock market listing for the fledgling battery maker Amprius Technologies. “It just has this multiplier effect.”

$45 million in grants to firms or researchers working on batteries that, among other things, would last longer, to create a bigger supply of used vehicles.

“We also need cheaper batteries, and batteries that charge faster and work better in the winter,” said Halle Cheeseman, a program director who focuses on batteries at the Advanced Research Projects Agency-Energy, part of the Department of Energy.

Gene Berdichevsky, chief executive of Sila Nanotechnologies, a California company working on next-generation battery technology, argues that prices are following a curve like the one solar cells did. Prices for solar panels ticked up when demand began to take off, but soon resumed a steady decline.

The first car to use Sila’s technology will be a Mercedes luxury S.U.V. But Mr. Berdichevsky said: “I’m not in this to make toys for the rich. I’m here to make all cars go electric.” 

A few manufacturers offer cars aimed at the less wealthy. A Chevrolet Bolt, a utilitarian hatchback, lists for $25,600 before incentives. Volkswagen said this month that the entry-level version of its 2023 ID.4 electric sport utility vehicle, which the German carmaker has begun manufacturing at its factory in Chattanooga, Tenn., will start at $37,500, or around $30,000 if it qualifies for the federal tax credit.

Then there is the Wuling Hongguang Mini EV, produced in China by a joint venture of General Motors and the Chinese automakers SAIC and Wuling. The car reportedly outsells the Tesla Model 3 in China. While the $4,500 price tag is unbeatable, it is unlikely that many Americans would buy a car with a top speed of barely 60 miles per hour and a range slightly over 100 miles. There is no sign that the car will be exported to the United States.

Eventually, Ms. Bailo of the Center for Automotive Research said, carmakers will run out of well-heeled buyers and aim at the other 95 percent.

“They listen to their customers,” she said. “Eventually that demand from high-income earners is going to abate.”

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