As Djwheels suggests.
Some of the large chain garages request bank transfers 3 or 4 days before changeover day. They do not take credit or debit cards or cash.
The payment gies to an account the other side of the country, where their accountants office is located.
It just ensures you are able to take the car away on the day of changeover. Some do this, some do not. Better to check with the dealership beforehand.
Given the current high AP,s some are beyond the limit of my credit card anyway.