Aldro just so you know both GT1 and GT3 both had less than 200 cars. I know this is now GT5 and we have waited a long time but my point is even if you look at this game as only 200 cars then that is still a tremendous number of cars with bonkers detail levels.
Also for those that don't know yet. Skid-marks and reverse lights are confirmed.
Also there is a track creator, it is not a track editor and it allows full customization of time of day and weather.