Don't know if i'm the only one around here who has noticed this but seeing as you can't kidnap random people i have thought to myself i might as well roleplay and try and 'kidnap' a prostitute.
Usually though when i try and drive a prostitute outside of the city she just jumps out, even whilst i'm driving. I tried to roleplay a scenario where i picked the prostitute up and took her to the secluded vinewood sign and then have sex and kill her, but she jumped out of my car before hand. I tried this twice and i didn't even crash or anything.
Very annoying. I guess the possibilities are limited.