It does support N3 now(NRHQ 3.8), and well worth registering...
> Except for the fact he doesn't have the files up yet. :(
> >The definite best program for adjusting the game very realisticly is
> >NRHQ:(now supports N3)
> >http://www.racesimcentral.net/~danej/
> >Cheers!
> >Chris Roy,
> >> N2 Starting Grid, originally found at IWCCCARS was an outstanding way to
> >> keep the AI car ratings current and realistic.
> >> However, with N3 there are about 8 additional data fields now being used
> >> in each .CAR file. Qualify, Road, Short, Speedway.
> >> If you add these numbers to the .SGD data file they are not passed along
> >> to the .CAR file but it does update the original 8 data fields.
> >> If anyone has a way to get this little program to work with N3 it is an
> >> outstanding way to keep the driver data accurate.
> >> Thanks,
> >> Andrew