Corvette Forum member "skank" was at Laguna Seca both days, some pictues, videos, observations-opinions-speculations posted starting page 2 of this thread. 2 small wing, 2 big wing, 1 C7 ZO6, 1 Camaro ZL1 1LE at track lapping. The speculated ZR1 was notably louder, speculation of larger displacement blower...possibly new Eaton 2650 rotor pack...
http://www.corvetteforum.com/forums/...na-seca-2.html