The auto sales are taking a dive and with the bankruptcy of Carvana, it's very likely that the vehicles that are owned by them will be liquidated and sold for cheap. The boom in used auto sales has ended.
Keep in mind, the catalytic converter on every vehicle is worth $1000-$2000 to a scrap metal dealer.
What's funny is that on my sister's previous car, some losers stole her catalytic converter.
Catalytic converter theft has become one of the top crimes in North America over the past couple years. It's because they're made of precious metals, which have gone up in price lately (and will continue to).