No problem Gauss, I had to dig around on the Corvette Forum for that, GM hasn't release exact weights just yet of the Base and Z51 models.

Car and Driver Tested : 2014 Chevrolet Corvette Stingray / Z51 Revealed

 http://www.youtube.com/watch?v=EUrtMZ20rFk (31:32)

2006 Corvette Z06 - 563rwhp, (Coilover, Brembo BBK, etc.)

2010 Mercedes E63