[central_va]

Why would you import cars form a factory in the EU when you can make them duty free in the UK? All the UK producers need do is lower their price a few points and gain a greater market share. That’s the whole point of an import tariff to make domestic suppliers more competitive against imports and to promote domestic industry AND IT WORKS!

[Cronos]

Let me explain it to you one more time - to make the cars in the factory in the UK you will need to import different components. You'll need to ship the components back and forth. And remember the UK manufactures very little of its own

Don't try to say "it would work for the US and it would hence work for the UK" -- the US can cut itself off from the world, while the UK, ever since the 1700s, could not