lets remind ourselves how goods move inside the customs union [which is what we have now] and outside of the customs union
'The car industry has warned Theresa May there is “no Brexit dividend” for the business, with 860,000 jobs being put at risk unless the government “rethinks” its red lines in negotiations.
In the starkest warning yet from a single business sector, the car lobby has told the government that it needs “as a minimum” to remain in the customs union and a deal that delivers “single market benefits”.
“There is no Brexit dividend for our industry,” Michael Hawes, chief executive of the Society of Motor Manufacturers and Traders, said.
It said Brexit uncertainty was thwarting investment and repeated calls for the UK to stay in the customs partnership until the government came up with a “credible plan B”.
The sector had grown for the eighth successive year with turnover at a record £82bn in 2017. However it said 2018 has showed a slowdown in output with investment earmarked for new models, equipments and facilities in the UK halving to around £347m.'
source;https://www.theguardian.com/politics/20 ... r-industry