I'm stuck here as well. Have been for years and now I'm desperately trying to figure this out before the next GTA releases, otherwise I won't buy it.
I completed Special Someone. No phone call. I have gone to the car website but when I dial the number for the pink car, I get a dead end. No "bitches" phones number shows up in my phone book either.
I have reloaded the game numerous times and and redone the Special Someone mission. Nothing ever changes. Still stuck.
Help! Advice?