TBH, the ZR1 could've been a lot more then what it is... I don't see Cerberus making the Viper after the SRT10 is done, The ACR is Icing on the cake of a nice history of a US production world beating sports car. Corvette is over a 1/2 century old, and sales are still strong. Ford is building a new "fast car" likely seen in 2012 on the street.
The bar is set incredibly high, let us hope that legislation doesn't change the scene so the manufacturers can reach the bar