Back in the day when I was still working, I used drive to the UK in my company car fairly regularly. I was stopped at customs or immigration in Dover more times than I care to remember and it was always the same saga. Is this vehicle yours
Me: No, it's a company car
Them: Do you have permission from them to bring it to England?
Me: nope! The car doesn't belong to my company, it belongs to a leasing company.
Them: have they given you permission to bring it to England?
Me: All lease cars in Luxembourg have blanket permission to visit other EU countries - Luxembourg is a very small country - I go to work via Belgium so I go "abroad" every day!
I was never actually refused entry but I did get to the very curt stage more than once!
Little England tossers - I fuckin HATE them!