I would think so. That means you could hang with the GT500 ... (GT500's and Vettes are expected to perfrom about the same according to Car and Driver's issue with the 2 cars on the cover). Assuming, of course, it was the Vette with all performance options and he wasn't toying with you.
I dont know if he was or not. I heard him squeel his tires at the light, but it could've been a fluke. I dunno. Hed out rev me, and i'd puill right back up.. but after 3rd.. he just kept going off...