gran Turismo, who finished time attack mode?

[Marduk]

When you can't drive i am sure that some of you are playing to gran Turismo 3 on your playstation 2.
I have no car yet, so i spend all my time on this game and i have finished the time attack mode in 6 hours.
from the first record to the last witch is the difficult complexString with the Ruf.
So i like to know if many people has done the time attack mode ? and how many time they spent on it?