UK Car Production Falls 7.5% as the SMMT Warns EV Investment Is at Risk

British car factories have had a bad six months and a flat one. New figures from the Society of Motor Manufacturers and Traders put UK vehicle production at 385,979 cars and commercial vehicles for the first half of 2026, down 7.5% on the same period last year — but with almost all of that damage done in the first quarter. The trade body's warning is not really about the number, though. It is about what happens to electric-vehicle investment next.

The half in figures

The quarterly split is the more encouraging part of the release. Q2 output fell by just 128 units — a 0.1% dip year on year — as exports strengthened and car production edged back into marginal growth. After a first quarter that dragged the half into negative territory, that reads as stabilisation rather than recovery.

The domestic side is where the weakness concentrates. Output for the UK market fell 13.2%, more than twice the rate of the export decline, and electrified models were among the hardest hit: they accounted for roughly four in every ten cars built in the half, yet their output ran 8.6% behind last year. Model changeovers at several manufacturers account for part of that, since a plant retooling for a new electric model builds very little of anything while it does so.

The SMMT's argument

The SMMT's position is that manufacturers are spending billions on zero-emission technology while the rules governing what they must sell have outrun what customers are actually buying. Its blunt formulation is that regulation ahead of demand makes the cost of selling in the UK untenable, which in turn undermines the case for building cars there at all. Reform of the ZEV Mandate — the rules setting the share of zero-emission vehicles each manufacturer must sell each year — is the trade body's central ask, alongside action on industrial energy costs.

The trade body's leadership has put it more sharply still in the accompanying commentary, framing Brexit, EU and ZEV Mandate rules together as the reason investment in UK automotive manufacturing is not happening. Carmakers, on this account, are holding back commitments to British factories until the EV sales rules are relaxed.

What it means for the rest of Europe

For European EV buyers the UK is both a large market and a supply base, and the argument playing out here is the same one surfacing across the continent: manufacturers accept the direction of travel but want the annual targets, and the fines attached to missing them, loosened. Renault Group's chief executive made a near-identical case this week in calling on Europe to cut regulation and set what he called realistic electrification targets.

The counter-argument is worth stating plainly, because the SMMT does not make it. Relaxing the mandate reduces the guaranteed demand that justified the EV investment in the first place, and manufacturers that have already built electric capacity are not obviously served by a slower ramp. Nothing in this data settles that; it establishes only that output has stopped falling and that the industry is using the moment to press its case.