Thinking About Buying a Used Sports Car, Are Maintenance Costs a Dealbreaker?

I’ve always dreamed of owning a sports car, and lately, I’ve been eyeing some used models like the BMW M3 or Porsche Cayman. They’re more affordable upfront, but I keep hearing horror stories about maintenance and repair costs. For those who’ve gone this route, is it really as bad as people say?

I’m not afraid of doing some basic work myself, but I don’t want to get stuck with a money pit. Are certain models more reliable than others? Or is it just a given that you’ll be paying a premium to keep a used sports car on the road? Would love to hear your experiences good or bad!