For GT4, they should have included the car salesman from Gremlin's Supercars, where you had to sweet-talk your way to a lower price.
Or maybe next time they can put in some AI. That would be nice.
Or some damage!
Sorry, F1 Challenge aficionado (sic) here. Except I still also play F1GP. Because I can create the 2005 cars and drivers in 20 minutes...
And so ends my disjointed post. :-D