Back to cars ,I was involved in a contract inLondon, where we were next door to a secondhand car plot. I still "admire" the way they could transform the roughest old dog into a fantastic looking car. I went in his office once and he seemed to me to be making up new service book for the car.
I seen far too much of that, in fact my job nowadays is to spot such "made up" histories.
Crooked dealers even have company stamps made up, obviously not their own company.
I always tell people to take an expert along when buying a car, even from a dealer.
So many cars have been sold on PCP with mileage limits over the last few years, so many get clocked back, especially expensive vehicle such as Range Rovers.
I've even had cards left on my windscreen at auctions offering "mileage correction service"
But as you say, there are some proper dealers out there, some one selling from their own home would be mindful of a customer coming back creating hell so will try their hardest to do the job right.
I am amazed you say car traders are working for years and not VAT registered.
Yes
I have actually had trouble with selling car to a main dealer ,a few days later I got the sales director on the phone complaining the mileage on the car I had part ex,d had the wrong mileage on it . I explained that he look at the order form I signed in his dealership ,where I had written very clearly that the car was on its third speedo and I did not know what the true mileage was. Never heard back from him
When working I did about 140000/150000 in a car in two years
Wow, that's a big mileage, how did the cars stand up?
Many repair bills along the way?
I ran a Mondeo TDCi once, it was great until about 110,000 miles when it started costing boat loads of money on repairs.
Interesting stuff.
My mate, who imports wine, has just had a visit from Customs Officers who presented him with a bill for 12K.
I am not an accountant so I am not going to pretend I understand the following.
When he picks up wine in Germany, direct from the vineyard, he pays cash including VAT.
When he sells it over here his price includes VAT, so the German and Dutch government both get their share.
He also declares his import using the delivery paper work showing that he has paid VAT in Germany.
The only thing I can think of is that the German is cooking the books?
Stuff coming into the UK is subject to import duty, I think on wine it's £1 per bottle.
When he picks up wine in Germany, direct from the vineyard, he pays cash including VAT.

And another thing he told me a while back, the vineyard owners wife, who does the accounts, sends him reminders that some invoices have not been paid...!!
He has been doing business with this vineyard for years and never had problems before and told her he always pays here husband cash.
And I am witness to this, as I go on most trips with him.
Think the old German takes his wad of cash and stops off at the Reeperbahn in Hamburg on his way home......![]()
You will be a handy witness if that's the case.