On a vehicle that looked very promising (in addition to the carfax). It helped me decide if it was worth going out there or not to see and/or buy it.I told the dealer if you put it on hold and everything looks good I’ll buy it tomorrow, they asked for some proof I was serious and offered to show them a picture of my place ticket receipt. They agreed and I sent a picture of the receipt, everything looked good in person and test drive was good and ended up buying it. In this case the vehicle had been on the lot for a bit so they didn’t seem to mind holding it for me for a day. I even asked the dealer if they’d pick me up at the airport and drive straight to the dealership for free and they were more than happy to