Here's a review out of the L.A. Times. Hopefully you don't have to have an on-line subscription to view.
http://www.latimes.com/classified/au...-home-highway1
Here's the specs from Car and Driver (

)
2006 Chevrolet Corvette Z06
Base price: $65,800
Price as tested: $69,995 (estimated)
Powertrain: 7.0-liter, 16-valve pushrod V-8; six-speed manual transmission; rear-wheel drive.
Horsepower: 505 horsepower at 6,300 rpm
Torque: 470 pound-feet at 4,800 rpm
Weight: 3,147 pounds
0-60 mph: 3.4 seconds
Wheelbase: 105.7 inches
Overall length: 175.6 inches
EPA fuel economy: 16 miles per gallon city, 26 mpg highway
Final thoughts: Carbon-fiber catapult
If I had the money, I'd buy this car. Or wait and see what the Skyline GTR has to offer. The Z06 seems like a good value - assuming you can afford and upkeep a $70,000 car.