Many auto makers projected 70 percent EV sales growth for 2023 based on sales nearly doubling annually from 2020 to 2022, Loh said.
Instead, EV sales growth reached about 50 percent last year, a massive increase but below expectations. The dimmer reality paints a picture of weakening EV demand. New EV registrations rose just 15 percent in January, according to S&P Global Mobility.
"This obviously caused a lot of consternation among our OEM clients who are pumping billions of dollars into these next-generation vehicles," Loh said.
Auto makers can close half of the cost gap with effective technology choices, such as higher-density batteries, more efficient electric motors and better battery management software. They should also identify efficiencies in EV and internal combustion vehicle production, Boston Consulting Group said.
Even with such improvements, they'd still lose about $3,000 on every $50,000 EV they sell, Loh said. Support from policymakers and continued advancement of public charging infrastructure can help narrow the gap.
Advancements in vehicle, battery and charging technology also would accelerate production of EVs that are affordable for mainstream buyers, "but the question is fundamentally whether they're going to be able to make money," Loh said.
EVs could make up 30 percent of U.S. sales when next-generation models—those that launch within the next 12 to 18 months — are in full production, Boston Consulting Group said. "But there are many reasons to believe this might not happen," Loh added.
Auto makers may delay EV launches if the vehicles are unprofitable, and consumers may become more cautious as fluctuating prices make resale values uncertain. Those factors, among others, could put EV share around 20 percent, rather than 30 percent, Loh said.