Economy: Mexico
Key Facts
—Who. INEGI, Mexico’s national statistics institute, which compiles monthly light-vehicle data from an administrative register of carmakers.
—What. Mexico built 301,803 light vehicles in September, down 15.13% from 355,589 a year earlier. Exports fell 11.85% to 277,369.
—Where. Mexico. The United States took 76.4% of exports in January to September.
—When. Published Wednesday 7 October 2026 for September. INEGI calls the figures preliminary.
—Prediction markets. Kalshi, regulated in the US by the CFTC, shows last trades of 41% for a US–Mexico interim trade deal in 2026 and 13% for a US withdrawal notice (thin trading, read about 7 pm ET on 7 October 2026).
—As of. 7 October 2026, 23:00 GMT.
Mexico built 301,803 light vehicles in September 2026, 15.13% fewer than a year earlier, according to the national statistics institute INEGI. Exports, which go mostly to the United States, fell 11.85% to 277,369, and the output drop was the steepest since November 2021.
What We Know
INEGI compiles the figures from an administrative register of the light-vehicle industry and publishes them monthly. It calls the September figures preliminary.
INEGI published the figures on Wednesday 7 October 2026. Output was 301,803 light vehicles, against 355,589 in September 2025, a loss of 53,786 units.
Exports were 277,369 vehicles, down 11.85% from 314,656 a year earlier. Domestic sales moved the other way, rising 7.94% to 129,274 vehicles.
For January to September, output reached 2,946,943 vehicles, down 2.42%, and exports reached 2,528,623, down 1.50%. The United States took 1,931,750 of those exports, or 76.4%.
September output was 43,137 vehicles below August’s 344,940, a monthly fall of 12.5%. That is our own calculation from INEGI’s two monthly reports.
Which Carmakers Fell
General Motors, still the biggest producer in September with 58,949 vehicles, cut output 27.10%, according to analyst Gabriela Siller of Banco Base. Nissan’s output fell 26.28%, its ninth straight monthly drop.
Ford fell 16.39%, and the decline hit most of the brands that build or assemble light vehicles in Mexico. Chrysler was among those that grew, up 4.39%.
Nissan closed its CIVAC plant in Cuernavaca in March 2026 and its COMPAS plant in Aguascalientes, shared with Mercedes-Benz, in May. Those closures help explain why its output has fallen for nine months running.
Tariffs and the Trade Treaty
Washington has applied a 25% tariff to imported vehicles since April 2025, with exceptions linked to US content under the USMCA trade pact. In July the United States declined to confirm a 16-year extension of the pact, called T-MEC in Mexico, which triggers annual reviews.
INEGI’s report gives no cause for the drop. El Universal names two: US tariff pressure and the closure of two Nissan plants.
None of the reports we read splits the fall between the two. That makes it hard to say how much a tariff deal alone would restore.
Our earlier reports covered the USMCA review talks and the auto sector’s outlook under US tariffs. Those pieces described the pressure before the September figures arrived.
What Prediction Markets Say
Kalshi, a US exchange regulated by the CFTC, lists contracts on which USMCA outcomes will occur in 2026. Its latest trade prices, read at about 7 pm ET on 7 October 2026, were 41% for a US–Mexico interim agreement, 24% for a trilateral revised deal, 15% for a formal 16-year extension and 13% for a US withdrawal notice.
The outcomes can occur together, so the prices do not add up to 100%. Trading is thin and some of these prices date from earlier months, so treat them as a rough guide.
Polymarket, a separate platform, priced a formal USMCA extension in 2026 at 8%, with the last trade at 11% and about US$11,500 traded. These prices are bets, not polls.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
What Is Not Known
INEGI marks the production and export figures as preliminary, so they can be revised. The reports we read do not say how much of the fall is due to tariffs and how much to the Nissan closures.
It is not clear whether October will rebound or whether the fall deepens. The next INEGI vehicle report will show.
What It Means for US Readers and Investors
Mexico sends about three of every four vehicles it exports to the United States, so output there feeds directly into what US dealers can sell. A weak month at Mexican plants is therefore a supply signal for the US market.
The figures do not show a price effect for US buyers. Mexican domestic sales rose 7.94%, so the weakness is in output for export and not in demand at home.
General Motors cut Mexican output 27.10% in September. Investors in US-listed carmakers should watch whether other plants make up the gap.
The USMCA review is the main thing to watch. Its outcome will decide the tariff treatment of Mexican-built vehicles in the coming years.
More: Mexico news in English, every day from The Rio Times.
Frequently Asked Questions
How many vehicles did Mexico produce in September 2026?
Mexico produced 301,803 light vehicles, down 15.13% from September 2025, according to INEGI’s preliminary figures.
How much of Mexico’s vehicle exports go to the United States?
The United States took 1,931,750 vehicles from January to September 2026, which is 76.4% of Mexico’s 2,528,623 exports.
Which carmakers fell most?
General Motors fell 27.10% and Nissan fell 26.28% in September, and the decline hit most of the brands that make light vehicles in Mexico.
Why did Mexican car production fall?
El Universal cites two causes: US tariff pressure and the closure of two Nissan plants. INEGI’s report itself gives no cause, and none of the reports we read splits the fall between the two.
Sources
INEGI · USTR · Crónica · El Universal · Milenio · La Silla Rota · Cluster Industrial
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This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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