A friend of mine has a Superformance S1 (another "7" clone). Awesome performance, even with a 200hp Weber'd Zetec motor.
While on a "tour" of some Ohio backroads, I actually saw a crowd of Amish STOP working to gawk at the car as it rolled by.
However, getting into it requires a shoehorn, and getting out requires an assistant.
I think that it would be fun to build a Super Seven clone as a winter project.