The U.S. auto market is facing a perfect storm of challenges that could lead to a significantly smaller market by 2040. This isn't just a forecast; it's a complex interplay of demographic shifts, behavioral changes, economic factors, and technological disruptions. Here's why this matters and what it implies for the industry.
Population Decline and Changing Behavior
The U.S. population growth has slowed, and some countries are already experiencing declines. This is a critical trend because the auto industry has historically relied on population growth for its annual 1% growth rate. With a fertility rate of 1.6 births per woman in 2025, the U.S. is below the replacement rate of 2.1, according to the Centers for Disease Control. While immigration has historically offset this, restrictive policies are expected to reduce net migration rates, leading to a smaller and potentially less interested population in car ownership.
One telling statistic is the number of 16-year-olds with driver's licenses. Half of today's 16-year-olds don't have a license, compared to nearly 70% in the 1960s and 1980s. This might reflect a delay rather than a total refusal, but it suggests a shift in behavior. By age 25, most people still get their licenses, but the trend is clear: fewer young people are driving, and those who do are likely to use alternatives like Uber or Lyft.
Affordability and Technological Disruption
Affordability is a significant factor. New vehicle monthly payments have increased by 30% over four years, with nearly one in five new vehicles carrying a payment over $1,000 a month. This is a major barrier for younger buyers, who are more likely to use ride-sharing services. The availability of robotaxis in the next 15 years could further reduce the need for personal car ownership, with the share of licensed drivers potentially dropping by 2-3 percentage points.
The Longevity Factor
The longevity of vehicles is another critical aspect. Vehicles are lasting longer, with a record 12.8 years on the road in 2025, according to S&P Global Mobility. This could reduce the rate of deregistration (when vehicles are taken off the road). However, the longevity of electric vehicle batteries is uncertain, and the ability of automakers to update software is also in question.
Competitive Landscape and Market Consolidation
The auto industry is already highly competitive with about 450 nameplates in the U.S. market. As the market shrinks, competition will intensify. Gottfredson predicts a ferocious battle for consumers, leading to market consolidation. This means fewer brands and potentially fewer automakers, as the industry adapts to the changing landscape.
In conclusion, the U.S. auto market is facing a perfect storm of challenges. Population decline, changing behavior, affordability issues, and technological disruptions are all contributing to a smaller market. The industry must adapt quickly, with a focus on affordability, longevity, and market consolidation. The future of the auto industry in the U.S. is likely to be very different from what it has been in the past.
