it is the Corvette ZR1, it went though a bunch of weight reduction (most pannels are now carbon fiber, and lighter supports. the engine is a 6.2 liter but it is not a LS3 its the LS9 (it has the smae liters as the LS3 but it is built up way more...) it does have a new design by eaton that is very interesting... it is planned to have over 620 bhp but they do not have a specific number yet. 19" wheels in front and 20" wheels in the back... body looks similar to the new zo6 but is has some differances.... for aero and down force. bigger brakes.... the hood will have a clear section on it to show the supercharger.... and it is planned to be 100,000 USD.
GM saw what they could do with a $60,000 car (corvette ZO6) that could beat a lot of 6 digit cost super cars... and wanted to see what they could do with a $100,000 car. it is said to beat porcshes, Ferraris, lambos, and almost any other 12 cylinder super car you throw at it. will also beat the new skyline... no problem ;)