There are some really unethical people out there: https://www.rugbyadvertiser.co.uk/news/warwickshire-car-dealers-discovered-selling-dangerous-and-unroadworthy-vehicles-1-8816557

Absolutely disgraceful! Traders found guilty of this ought be stopped from trading.

There's one well known "iffy" trader not far from me, regularly changes the trading name so it's difficult to pursue claims against him. I was once persuaded to go and look at a Porsche he was advertising. I contacted him and asked for a brief run down of the car and was assured it was a 'great car in immaculate condition'. I quietly viewed the car, it was virtually in pieces... Certainly for more disassembled than I would be confident putting back together. He's gone to prison for his offences, but is still trading!