Considering a Used Sports Car Worth the Maintenance Costs?

I’ve always dreamed of owning a sports car, and lately, I’ve been eyeing some used options like the BMW M3 or Porsche Cayman. The upfront cost seems manageable, but I’ve heard horror stories about maintenance and repairs bleeding wallets dry.

For those who’ve gone this route, how bad is it really? Are certain models more reliable than others, or is it just a given that you’ll be paying a premium to keep it running? I’m not afraid of doing some basic work myself, but I also don’t want to get stuck with a money pit. Any insights or personal experiences would be awesome!