Carmakers are delaying UK factory investment until electric vehicle sales rules are relaxed, according to the head of the British car industry's lobby group. The chief executive of the Society of Motor Manufacturers and Traders (SMMT), Mike Hawes, confirmed that manufacturers with existing UK operations are holding back on final decisions to build new models until the zero emission vehicle (ZEV) mandate is eased.
Why Carmakers Are Waiting for EV Mandate Changes
The ZEV mandate requires manufacturers to sell an increasing share of electric cars each year up to 2030. However, the British car industry faces intense competition from China, US tariffs, and high costs of EV technology investment. As a result, carmakers are postponing commitments to UK factories, waiting for the government to relax the rules.
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Jonathan Reynolds, the business secretary, has indicated that the government is likely to water down the mandate. According to Hawes, "They're waiting for the mandate, certainly. There's investment decisions on next model, next generation, which need a resolution, need an easing of the mandate."
Impact on UK Vehicle Production
The uncertainty has already taken a toll. UK vehicle production fell 7.5% in the first half of 2026 compared with the previous year, with factories producing only 386,000 cars and commercial vehicles. This decline highlights the urgency of resolving the regulatory environment to boost investor confidence.
Which Carmakers Are Affected?

While Hawes declined to name specific companies, industry insiders suggest Toyota, which builds the Corolla in Derbyshire, and Mini, which postponed plans for electric models at its Oxford plant, are among those waiting. Nissan is also in talks to build a car for Chinese manufacturer Chery at its Sunderland plant, but no final decision has been made.
Jaguar Land Rover and other major players are similarly cautious, as the cost of transitioning to electric technology remains a significant barrier.
Comparison: Current EV Mandate vs. Proposed Relaxation
| Factor | Current Mandate | Proposed Relaxation |
|---|---|---|
| EV sales target by 2030 | 100% of new cars | Lower percentage (expected) |
| Manufacturer compliance cost | High (fines or credits) | Reduced financial burden |
| Investment confidence | Low due to strict rules | Higher with more flexibility |
| Environmental impact | Lower emissions | Potentially higher emissions |
Key Takeaways for the UK Auto Industry
- Investment delays are directly linked to the ZEV mandate uncertainty.
- Production decline of 7.5% in H1 2026 underscores the need for policy clarity.
- Competition from China and US tariffs add pressure on UK manufacturers.
- Charging industry and environmental groups oppose any relaxation, citing carbon emission risks.
What's Next for UK Factories?
The government's decision on the mandate will be crucial. If the rules are eased, carmakers are likely to greenlight new models and investments, boosting production and job security. However, any relaxation must balance economic needs with climate commitments.
Industry experts suggest that a phased approach, with interim targets adjusted to market realities, could provide the stability manufacturers need while still pushing toward electrification.
FAQ
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