The Mazda Miata (MX5) has been a popular, reasonably priced, sports car for almost 20 years.
The MX5 roadster comes with an optional removable hardtop, and several style and option packages.
It is reliable, fun to drive, easy and reasonable to get service or parts. It gets decent gas mileage.
Most people buy Miatas with the standard 5 speed stick shift transmission, but it is also available with an automatic. The bass transducer in the seat and headrest speakers are really cool.
Some very tall people might not find the Miata very comfortable, and if your aren't agile you might not like getting in and out of it. The trunk is about what you would expect in a car this size, but it forces you to have discipline and travel light.