That is the last u.s. coupe and is supposed to be a shade of summer yellow. If i remember correctly, it was a special order color painted in Porsche's older 1970's Summer yellow. Someone correct me if i'm wrong.
But i agree, it does not look like summer yellow in those pictures to me either.
The asking price is high due to the fact that its the last coupe, a 1 off color (i think), a full documented history since new, and has some nice options.
If i did not have my car and was in the market for a Coupe. I would snatch this right up. As it stands now, my next 968 will be a cab for the lady or perhaps the mint green early coupe if i can get my hands on it.
Speaking of which, i emailed this ad. to my father who is about to pull the trigger on a yellow Boxster S. Hopefully he'll be tempted and buys this car instead....i don't think i could sway him to the dark side however.