I guess it can be like the Terry Pratchett boot theory a bit. But yeah even among your circle, you need to be careful. I know somebody who got a junk car for a bad price because it was from somebody in their circle and everyone else vouched for the seller.
Very few people buying a new car keep it long enough to make it cheaper than buying $5-10k cars.
The last cheaper used car I bought, I kept for about 10 years, it was $10k. I sold it to my brother in-law after that, who had it another 5 years… it would have gone longer, but he didn’t realized I had changed the timing belt before I sold it to him, so he misjudged how long the one he put on would last, and it destroyed the engine… anyway, let’s go with it..
The last new car I got, was relatively inexpensive, as far as new cars go, at $35k. If a $10k used car ran for 15 years, I’d have to keep that $35k car for over 50 years to make it worth it.
New cars are almost never financially justifiable. And that new car will run into the same maintenance issues and costs as the used one as it ages.
The nicer the car, the worse this equation gets, as increased car pricing translates to luxury, not quality. This makes them very different from work boots.