I'd watch some pavement racing if they would loosen the cars up and make them as your sister says a fight to get around the track.
As it is I don't like watching a car that is glued to or especially pushed into the ground by a wing.
IMHO if you want a good pavement race put on the hardest tire they can run and run the race for as long as the tires will last going sideways. Now that would be a good pavement race.