I call weak sauce if this car ends up with a turbocharger under the hood. That will just make it heavier, less responsive and more mechanically fussy. What it should have is a punched out version of the stock engine, say 2.5L, with a more aggressive valve train and exhaust system good for 250+hp/200lb/ft. Maybe shave a little weight if possible...might be difficult given bigger wheels and brakes but maybe some lighter weight sport seats and CF roof and some other weight saving measures could save 100lbs or so on an already light car.
Now that would be driver's car. That would hang with a Cayman S for half the price. I'd want one for sure.