New car financing at VW

Hello together, after felt eternities we managed to order a new multivan. I am just taking a picture of the desired equipment, not to waddle completely blue-eyed to the VW dealer… But how does that work out? At BMW I have so far only acquired young used ones and financed there. If we agree on the price, is the loan applied for and checked directly? And only then does the car go into the flow of production (after months then really into the Pr oduction)? Or do I buy and afterwards the financing is done? May be a stupid question. But there are scenarios that can worry about a stupid situation, if it is ordered and then the financing is rejected shortly before extradition. Think the deposit is due only for extradition. But do not assume from a rejection with me, because we pay good income and a solid deposit. Thank you