It also could have been the 385hp Z06 which is quite a bit slower than the 405hp version.
There's something else that no one seems to have mentioned. With all that heat and humidity, both cars probably didn't perfom that well. 350z's stock can trap 100-101ish. This car had headers+ other mods and still only trapped 99mph.
In better weather conditions, I would love to see what traps Burrita's car is capable of.
-R-
