BBC with the report on an assessment from Nissan's global chief operating head
- Nissan says the UK's largest car manufacturing plant is "unsustainable" if the UK leaves the European Union without a trade deal
- people had to understand the EU was the Sunderland factory's biggest customer
- Nissan's commitment could not be maintained if there was not tariff-free EU access
- Nissan plant has 7,000 workers
