This would certainly qualify as a pre-production prototype
 

This has been a Corvette rumor since the 60's. However, this time it may actually happen. There have been signals that the Corvette would become more of a product line rather than just a model. And Chevrolet has been running mid-engine prototype Corvettes now for a couple of years. They weren't doing that for shits and giggles.
You just don't leave a moniker like ZR-1 sit there and do nothing with it. This sounds like Chevrolet has no intention to do that.

Scoop! Mid-Engine Chevrolet Corvette is a Go - Motor Trend

Re: This would certainly qualify as a pre-production prototype
 

Now, that would work just fine!!