You know what would be super-cool. If people pooled their money and had some sort of "race day" where people could just top out in their cars on the free ways all day.
So you could do it legally.
Anyway, you would probably want to do it like 3:00 - 4:00 in the morning. That's what I've heard people doing.
I've always wondered, 'cause the 5th gens are not as airodynamic than the 4th gens.
If you do do it, tell us how far you got. (at a track of course)