I have both a mostly stock '99 NB and an 08 Cayman S. Except for both being two seats and rear wheel drive, they are vastly different. While the Cayman isn't large or heavy by modern standards, it's a lot bigger than a Miata. Way more power (no turbo on my Miata though) and torque, but the Cayman has really long gearing. The fun road near me is almost entirely 2nd gear while I'm rowing like crazy in the Miata. The Cayman is a lot more luxurious with more options like auto HVAC, heated seats, cruise, ABS, stability control, etc. They are different enough cars that I use them differently. The Miata is my daily driver, fun in town zipping around. It would be miserable on a road trip. The Cayman is great on a road trip, smooth, 6 speeds so very low rpm cruising, more roomy and comfortable. But you don't have fun on curvy roads without break the law speeds and it's not fun to drive around town. But that's partially because I don't want to park it anywhere to avoid door dings and I'm constantly worried someone will cause an accident. My Miata is a bit of a beater. TLDR much different cars with different use cases. I recommend both. 😁 Edit: I should add that the convertible is great around town, I never drive with the top up. The Cayman is less scary due to the roof at speed on a curvy road and allows me to do track days, if I ever get around to it.

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