America’s used-car dealers are not short on cars. They’re short on cheap ones.
Dealers had 2.21 million used vehicles for sale at the end of September, 3.3% more than a year earlier, according to Cox Automotive’s monthly analysis of vAuto listing data. The cars priced at $15,000 or less went the other way. Their supply fell 16.2% from a year ago, and they now make up just 15.7% of what’s on the lot, down from 19.4% in September 2025.
Run those percentages against the totals and the result is odd. By The Auto Wire’s math, dealers added roughly 70,000 used vehicles to their inventory over the past year and lost roughly 68,000 of the ones under $15,000. Nearly all of the growth happened above that price, and then some. (Cox publishes rounded figures, so treat those counts as close estimates, not a census.)
Used car prices, meanwhile, keep climbing. The average used vehicle listed for $27,235 in September, the highest monthly average since December 2022, Cox said. That’s nearly 6% higher than a year ago. Kelley Blue Book’s buying guidance, updated Oct. 20, tells shoppers with less than $15,000 to spend to expect a limited selection.
The cheapest cars sell the fastest
Cox measures supply in days: how long the inventory on hand would last at the current pace of sales. Across the whole market, September ended at 49 days, up from 44 in August and one day more than a year earlier. For vehicles at $15,000 or less, it was 34 days, 15 days below the industry average.
To be fair to September, it was a better month for bargain hunters than August. Cox’s August report put the under-$15,000 supply at 29 days, with that inventory down 25.9% from a year earlier. Both numbers improved. The 15-day gap between the cheap end and the rest of the market stayed exactly where it was.
That gap is the affordability problem in a single figure. The buyers with the least room in their budgets are shopping in the part of the market with the least stock, where cars turn over fastest. Less time to compare listings, fewer chances to wait out a price, and less leverage on the ones they find. We noted the same pattern in February, when overall inventory improved but sub-$20,000 cars stayed scarce. Eight months later the threshold has dropped to $15,000 and the shape hasn’t changed.
Auction prices slipped. Asking prices didn’t.
Normally, a lot that’s filling up is a lot that’s about to get more negotiable. The retail sales pace fell 6.3% from August, with an estimated 1.35 million used vehicles sold, and inventory rose 3.9% in a month. The average listing price barely moved, essentially flat against a revised $27,223 in August.
At the same time, the wholesale side cooled. The Manheim Used Vehicle Value Index, which tracks what dealers pay at auction, fell 1.1% in September to 205.9 and finished 0.6% below a year earlier. “We are in the weakest season for wholesale valuations,” Cox Automotive chief economist Jeremy Robb said in the release, adding that high fuel costs are “beginning to show up in the Manheim data.” We saw the first signs of that split in the mid-month numbers, when values for gas-thirsty trucks and SUVs fell while used EVs rose.
The two indexes aren’t directly comparable. Manheim adjusts for mileage, mix and season. The listing average doesn’t, so a lot stocked with more expensive vehicles pushes it up even if no individual sticker changes. That’s partly the point, though. With fewer sub-$15,000 cars in the mix, the average listing climbs whether or not any single car got pricier.
Credit is easier to get. It isn’t cheaper.
Cox said its Dealertrack Credit Availability Index showed access to auto credit at its highest level since April 2015. Borrowing costs rose during the month, and Cox said deal structures have become more complex. Getting approved is easier than it has been in years. The payment is a separate question, and as we reported last month, the bond market has been pointing auto rates higher.
Certified pre-owned vehicles, the dealer-inspected, warranty-backed end of the used market, kept growing year over year. Cox estimated 213,525 CPO sales in September, up 10% from a year earlier and down 6% from August. CPO made up 15.8% of retail used sales, up from 15.2% the month before. The five best-selling used brands were Ford, Chevrolet, Toyota, Honda and Nissan, which together accounted for more than 49% of retail used sales.
What it means if you’re shopping
If your budget tops out around $15,000, the data argues for doing your homework before you visit, not after. At 34 days of supply, the good listings in that range don’t sit long. Get financing pre-approved, decide on two or three acceptable models instead of one, and widen the search radius.
With a bigger budget, the picture is friendlier. Overall supply rose to 49 days, auction values are softening, and Kelley Blue Book says prices may stay fairly steady through the fall. That’s a better setup for negotiating, even if the average sticker doesn’t show it yet.
September gave used-car shoppers more cars, a slower sales pace, easier credit and cooler auction prices. It didn’t give them more cheap cars.
If you’re shopping under $15,000 right now, how long has it taken to find something you’d actually buy?
Lead photo: Koons Automotive / Unsplash. Chart: The Auto Wire. Data: Cox Automotive (vAuto, Manheim, Dealertrack) and Kelley Blue Book.