In 2016 I picked up a 2013 320i Sport w/ 22k miles on the clock for $18.5k. The sticker on the car was just over $36k. I did have to fly to a relatively remote town (Ogden Utah) and drive it home to San Diego, so that was an extra $320 for the plane ticket/shuttle/gas and 14 hours out of a saturday.
It was almost out of warranty, so pre-purchase I paid a local shop $110 to do a similar inspection to what BMW does for CPO and it only needed brake pads. Aside from the brake pads and scheduled maintenance, eventually replaced the tires, so about $2000 in maintenance over that period. Sold it for $14.5k w/ 50k on the clock 6 years later.
Could have held onto it much longer but was eager to do the nomad thing as covid was clearing up.
I was very disappointed when searching the used car market for cars with low mileage, only to found they are almost as pricey as new but I don't know how they have been taken care of. A lot of them come from the rental business. I paid a bit premium (2K or so) for my new-zero-kilometer car, and after 6 years is as good as new, as it is cared like a baby.
A one way ticket from San Diego to Vegas was $180, and a 2 hour shuttle from there to St. George (mistakenly said Odgen above) was only $20. The salesperson from the dealership picked me up from the bus station and after a brief test drive and some paperwork I got on the road for the 450 mile drive back. I left home on the train to the airport at 9am, and was back at home with my new to me car at 11pm that night.
Considering we're on "Hacker" News, it's very much a worthwhile process to hack considering the cost savings vs. actual effort.