THAT IS INSANE!!! those cars are like the size of a miate (spell???) with a vette engine. thats badass!!! get one and post some track times or some races...the ultimate sleeper.
For the novelty/sleeper appeal, yes, but for pretty much everything else you'd be better off with a regular Vette.
Including a proper conversion it'll cost as much or more than a C6, and a car with a custom engine-swap is always bound to have more issues than a stock one, meanwhile it won't be any lighter.
I drove my Mom's Solstice the other day for awhile. I clock in at 6'4" 240 so it's not very comfortable for me. I can't imagine driving that thing with 400+ horsepower.