Oh, I guess I was assuming a 300ZX Turbo... but really, if you got it running right (and with a 5-speed) it should be close to 6.5 seconds. My 280ZX can do 0-60 in about 7.5 seconds. (non-turbo)
I've got a 96 Inifiniti G20 (automatic) that my wife drives 2.0 dohc 142 hp no mods and it does 0-60 in about a fortnight...seriously its about 9 secs...
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The 1/4 mile may define the car, but the twisty mountain road defines the driver.
The reported 0-60 times for the 3.5 SE, 5 speed, vary greatly. The best figures are from the Motorweek Road test which states a smokin' 5.9 seconds, and the 1/4 mile in 14.4 seconds at 100mph.
I just got my car last week and I'm not booting yet, but this puppy's got the looks, ride and performance are great!