Gm rented Languna Seca for three days in March. They reportedly brought 2 high winged ZR1's , two smaller winged ZR's, a Z06/Z07 and a ZL1 Camaro for testing. Here is Corvette Blogger's video from March 16th. Listen to the SC on Camaro at the end of the video as he starts to roll into it. I don't member the 1.7L whining like that?..... : ) Take into account the distance, exhaust noise, and wind etc as well.