As far as I understand from several users and the tech people at Tesla Belgium there is very little difference between TACC and AP for driving in traffic jams. TACC automatically stops and starts driving as long as you don't stop for longer than 20 seconds. After that you have to enable it again. AP basically does the same but you enable it again by pushing the throttle. Anyways, your hands (both?) need to remain on the steering wheel. Is this correct? I only want to drive automatically in traffic jams, I don't want autosteer (pretty useless if you need to keep your hands on the steering wheel anyway) and I don't want autopark neither.