The Hennessey twin turbo supercharged GT did the 11.0 sec 139 run while the best time of our GTs was my 11.1 sec 133 mph (I cheated since I had LC/TC). The Caddy wasn't close.
Ed
My best time of the day was 11.46 @ 131mph with a pulley and tune, set @ 93 octane on street gas.
Mike:banana