with all due respect i have noticed that the 0-60 times for the s2000 has ranged from high 5s to even 6s but have also droped to high 4s. it is all how well accustomed you have become to the clutch feel and you know where the sweet spot is on your car.
by the way i have seen a s2000 run 14.00 in the quarter mile all day long with no mods. so these things are pretty fast and just wanting to be tuned .