The Iran War Is Costing the Auto Industry 900,000 Sales in 2026

The Strait of Hormuz and Why It Matters for Auto

The Strait of Hormuz, the narrow waterway through which approximately 21 percent of the world's oil transits, has been subject to varying degrees of disruption since the conflict began. Iran has not fully closed the strait, which would constitute an escalation that several major powers have indicated would trigger direct intervention, but Iranian naval assets have complicated passage for commercial shipping in ways that have added risk premiums to insurance costs and in some cases extended transit times as vessels take longer routes.

The disruption's direct impact on automotive manufacturing comes through two channels. The first is raw material costs: steel, aluminum, and polymer inputs for vehicle production all have energy costs embedded in their production that rise when oil prices spike. The second is logistics costs: shipping automotive components and finished vehicles globally is a fuel-intensive business, and the combination of higher fuel prices and disrupted shipping lanes has added meaningful cost per unit to vehicles that cross ocean shipping routes.

"This is not a temporary shock that manufacturers can absorb through hedging. At $120 oil sustained through the production cycle, we are talking about hundreds of dollars per unit in additional manufacturing cost on top of the demand destruction that comes from higher consumer fuel bills."

Sam Fiorani, Vice President of Global Vehicle Forecasting at AutoForecast Solutions, speaking to Reuters in March 2026

Japanese manufacturers with significant production in Japan and Thailand, whose plants draw heavily on Middle Eastern oil, are particularly exposed to the input cost pressures. Toyota, Honda, and Nissan all have risk management programs designed to hedge oil price exposure, but sustained prices at $120 exceed the range that most hedging programs were structured to absorb without passing costs into pricing or accepting margin compression.

US Automakers: The Big Three's Different Exposures

General Motors, Ford, and Stellantis each have different exposure profiles to the oil price shock, shaped by their manufacturing footprints, their vehicle mix, and the degree to which their profitability depends on the high-margin truck and SUV segments that are most sensitive to fuel cost changes.

Ford's dependence on F-Series truck sales is the most frequently cited vulnerability. The F-Series has been the best-selling vehicle in the United States for more than four decades, and its profitability provides the margin that funds Ford's investments in electric vehicles and other transition costs. F-Series buyers are not primarily driven by fuel economy in their purchase decisions, but sustained high gas prices do cause a measurable shift in the proportion of buyers who choose smaller engines, which reduces per-unit revenue, and in some cases cause buyers to delay purchases or shift to more fuel-efficient alternatives.

General Motors is in a slightly less concentrated position, with a broader range of models and a stronger international production presence that gives it more geographic diversification in both manufacturing and sales. However, GM's most profitable North American vehicles, the Chevrolet Silverado, GMC Sierra, and the Escalade family, face the same demand sensitivity as Ford's trucks at sustained high fuel prices.

The EV Question: Do Higher Gas Prices Help or Hurt?

The relationship between oil prices and electric vehicle demand is more complex than the intuitive assumption that high gas prices accelerate EV adoption. In the current market, the evidence is mixed at best.

Higher gas prices do improve the total cost of ownership math for EVs, making the running cost advantage of electric propulsion more visible in monthly budget calculations. Survey data from consumer research firms consistently shows that fuel cost savings are among the top three motivators cited by consumers considering an EV purchase.

However, the oil price spike is happening in a macro environment where consumer confidence is already under pressure from the conflict's broader economic effects. Consumers who are worried about their household financial situation tend to delay large discretionary purchases rather than accelerate them, and vehicles of any propulsion type are large discretionary purchases. The income effect of higher energy prices on households that are not wealthy works against EV adoption by reducing the financial headroom that makes a $45,000 vehicle purchase feel manageable.

The net effect in the near term is likely modestly positive for relative EV share (EVs as a percentage of total sales) but negative for absolute EV sales volume. If the total vehicle market contracts by 800,000 to 900,000 units, EV sales can grow as a share of a smaller pie while still declining in absolute unit terms, which is the scenario most analysts are projecting.

Supply Chain Complications Beyond Oil

The direct energy price impact is only one dimension of the conflict's effect on automotive supply chains. Several specialized materials used in vehicle production either originate from or transit through regions affected by the conflict. Platinum group metals, essential for catalytic converters in internal combustion vehicles, have seen spot price increases due to shipping insurance cost increases for cargo moving through affected maritime corridors.

EV-specific materials present a different but related concern. Lithium carbonate, cobalt, and nickel, the primary materials in current-generation lithium-ion batteries, are sourced predominantly from South America, Africa, and Indonesia, geographies not directly in the conflict's primary impact zone. However, the refining and processing stages for several of these materials involve intermediate steps in the Middle East and Asia that have been affected by the logistics disruptions the conflict has created.

The conflict has also affected just-in-time manufacturing schedules for several European automakers whose supplier networks include components manufactured in Turkey and the Gulf region. BMW, Mercedes-Benz, and Volkswagen have all been reported to have initiated contingency supplier mapping in response to the conflict, identifying alternative sources for components that had been sourced from affected regions. That exercise is expensive in management time even when it does not result in actual supply disruption, and its cost is one of the less-discussed impacts of the geopolitical situation on the industry.

The Medium-Term Outlook: When Does Normal Return?

The medium-term trajectory for the auto industry's oil price exposure depends entirely on the conflict's political resolution, which remains unpredictable. Military conflicts that affect major energy transit routes have historically followed one of two patterns: relatively quick de-escalation and normalization of shipping, or extended periods of elevated risk that reshape supply chain geography over multiple years.

The S&P Global Mobility forecast that AutoForecast Solutions draws on in its 800,000-to-900,000 unit projection assumes oil prices remain above $100 per barrel through the second quarter of 2026 and then begin declining toward $85 to $90 as some Strait of Hormuz shipping normalizes. If the conflict extends or escalates, that oil price trajectory is too optimistic, and the vehicle sales impact would be worse than projected.

The industry's primary response has been cost management rather than revenue recovery. Manufacturing overhead reductions, shift adjustments at plants where demand has weakened, and supplier negotiation exercises aimed at absorbing input cost increases without passing them fully through to retail pricing are all underway at multiple manufacturers simultaneously. The strategic bet is that managing costs through the acute phase preserves market position for the recovery that follows any diplomatic resolution.

What the industry cannot control is the timeline for that resolution. The layered cost pressure from tariffs that predated the conflict means that the auto industry is absorbing the oil price shock from a position of already-compressed margins. The eventual recovery in vehicle sales, when it comes, will be arriving into an industry that has already absorbed a significant portion of the cost discipline that rapid volume growth typically enables.