I've seen the 3.5 altimas run 14.6-14.7. the maximas are suppose to be even faster.

I looked at some specs... I've found as low as 5.9 and as high as 6.3 for the 3.5SE

2003.5 5AT
Premium Package
Tire/Wheel Package
K&N Filter, Z-Tube, EGK

all the nissan/infiniti 3.5VQ cars are fast regardless of what tranny they have(thanks to torquey engine ... altima/maxima/g35/350z they are all within +-.5sec or less so it comes down to driver's race... i'm not suprise to see altima beating g35s and 350Zs...