By roadster I mean a Miata type one, although I’m not sure there’s any other kind of roadster. By that of course I mean small, 4cyl, RWD, and light weight.
The catch is that it will embody the character of that brands midsize sedan. So if you decide Toyota, because it’ll be reliable, it’ll be the Camry of roadsters. Dull, reliable, and boring. If you choose Chevy it’ll be cheap, with lots of convenience features, “ehhh” reliability, and handle like it’s a class bigger than it is. (That’s how I describe Chevy’s, your opinion may very.)
I’ll also add, it can be a brand that’s no longer manufactured.