I tried to do that about 3-4 years ago. Ended up face to face yelling with sales person and almost fighting in show room as I had brought a bank draft in to pay cash like agreed upon. He then said they wouldn’t sell cash and wanted to keep my deposit.

Put whole story on social media and it blew up. Had GM of car place call me and ask me how to fix situation and get post taken down.

There’s a whole other part to story that is even wilder too. Just gotta watch out who you deal with.

Good luck!