customs union

And since Russia's invasion of Ukraine there has been a steep rise in exports of used cars to Kazakhstan, Kyrgyzstan and Armenia – all of which are members of the Russia-led customs union.

Brussels says those barriers are a result of the UK’s own choices: leaving the single market and customs union.

The government has ruled out rejoining the EU, or its individual big projects – the single market and the customs union.

The prime minister reiterated that position today, insisting that the fundamental architecture of Britain’s post-Brexit settlement - outside the single market, outside the customs union - is not up for debate.

In the meantime, the party says the UK should re-enter the single market and customs union “as soon as practical”.