Since virtually nobody here is planning to keep either one bone stock, I don't think its much of a gap at all. And stock-for-stock, the Subota comes with prius tires. I've driven both, and its pretty tough to call one a winner...so far.
While they are definitely competitors, its still a roadster vs a 4-seater coupe. I know there are a few folks here that don't ever drop the top, but they are a minority. I can't think of the Subota without missign the vert.