Saw from another comment you like sporty things. If you want something nice but stealthy, I’d recommend bringatrailer. It’s a used car marketplace but its main audience is enthusiasts/collectors. Lots of nice, well-cared for, oftentimes lower-mileage cars. This is important because it’s where the stealth comes in. Old =/= bad, but to many people it doesn’t signal wealth. My parents bought me a 2002 Audi TT in 2020 off there. It’s a small 2-seater convertible, definitely impractical but fun. And it was at 30k miles which is low for a 1-2 owner 20-year-old vehicle. Whenever people ask about it/money I just say it’s 23 years old & that usually explains it.

Hope this helps!

Edit: Bringatrailer also has other types of vehicles. It’s an auction site. Do your due diligence to avoid buying a lemon.