The first generation Miata. It's still a Miata, but you get the idea. This would be good news for people like me since I still like the MX-5, but not as much as the original Miata. The new one has just grown so much.
I see this being aimed at cars like the Mini Cooper and Cabriolet, as well as being a more focused rival the more sporting variants of European supermini's, such as Vauxhall's Corsa-based Tigra, Peugeot's 206CC and Nissan's Micra C+C, which, despite appearances, are almost definitely smaller than an MX-5.