The Electric Mini Superleggera's chances for production increased according to Autocar. The website says production could begin by 2019.
The two-seater will probably get a plug-in hybrid drive (FWD with AWD option) setup and would be in direct competition with the Mazda MX-5.
Mini boss Peter Schwarzenbauer said:
“The interest was tremendous when we showed this concept car. We are now working hard to get it on the street. It’s an economically challenging project and there is no firm decision, but we have a lot of people here that are fighting for it. I think it would be extremely good for the brand.”
It could be something like a "junior BMW i8".
4 years from its possible date of introduction means it's to early to talks about specs, but Superleggera likely borrow much of its powertrain components from other BMW or Mini models (there could be other plug-in Minis introduced earlier).