Do not forget that if it wasn't for Great Britain and the rest of the English-speaking world, the whole of Europe would now be speaking German! Furthermore, in 1973 this country joined the Common Market, essentially a Free Trade area. Quite how the Common Market evolved into the leviathan which is the EU, spawning the unelected, unanswerable European Commission, which seems to have more powers than the elected Euro-MPs, on its way, defies all logic. It is also of note that, for the last 20 years or more, stories have been circulating that auditors have refused to sign-off the EU's accounts. Whether this is completely accurate is unclear, but there's no smoke without fire!
All this is compounded by various "little Hitlers" throwing their weight about, especially Jean-Claude Juncker, who even had the audacity to say that Great Britain will do as it is told! Do you remember that some countries gave their citizens a vote on the Lisbon Treaty? If I remember correctly, Portugal and Ireland voted against. They were told by the dictators in Europe to vote again! And they did. Brown, who was then Prime Minister at the time, initially had agreed to give us a vote on the treaty, but then reneged, as, had we voted, and it is likely the vote would have been overwhelmingly against the Lisbon Treaty, the threats from Brussels/Strasbourg would have been given the proverbial two-fingers. This is something he needed to avoid, as it would probably have brought down the Labour government.
In conclusion, Europe needs Great Britain more than Great Britain needs Europe. Should we leave the EU with no deal, then there will be lots of BMWs and Mercedes, along with Volkswagens, Renaults and all of the rest sat in the manufacturers compounds in Germany and France. Our new cars will be Nissans, Toyotas, and Hondas, which are built in the UK (from parts imported from Japan) plus Vauxhall (unless PSA pull the rug) and Ford (unless Ford Germany put the boot in). Then we will be importing cars from our new trading partners so you will see on our roads the likes of Chevrolet, Buick, and Dodge. We could even entice the likes of Hyundai and Kia to come here, thereby sealing the fate of the big European manufacturers.
I voted for Brexit, because I am totally disillusioned with what the Common Market has become. With hindsight, I should have voted leave in 1975 when the Wilson government called a referendum on continued membership of the EEC (Common Market).