Fast forward in time and somebody had a very "clever" idea to outlaw paying more than 5,000 EUR in cash. Now, I have to wire transfer the funds in advance, wait for the transfer to clear and then come in to get the car. I certainly don't risk being mugged on my way to the dealer (in broad daylight, without advertising everyone, e.g. on social networks, that today I am buying a car and waving the wad of cash in a selfie). But if the limited liability company with 6,000 EUR liability deposit bankrupts, I will have neither the money (wire transfer have nothing like cashback on credit cards) nor the car until a lengthy legal process hoping that they have enough funds and property to pay out all creditors... You don't risk mugging but have to do way larger due diligence, check finance health of the company, ask around for customer feedback on the company, etc.