I just sold my car on autotrader and trust me i got calls within minutes of putting in on there, i will add it became very annoying once i sold it to try and update my advert to say it had been sold, i still got a call last night asking about it and it was sold 2 weeks ago!!!! i would tend not t give my home number in future i had loads of calls not that is bad because obviously you want to sell your car, but it got so much i wanted to put a pre-recorded message on my phone before i picked it up just telling people car was sold.
I dont know why it takes so long for it to update to say its sold on there.