Check this link out guys, it states the 0-60 was achieved in 5.9s stock. Not bad...
http://www.saycampuslife.com/2012/03...13-scion-fr-s/
http://www.zeroto60times.com/Scion-0-60-mph-Times.html
Not sure if this was posted before but it seemed interesting, there you have the info. I guess 5.9s could be achievable under almost perfect conditions, with a good driver and a good launch. Not sure if with the auto or manual. But it should be similar with a good driver on both transitions IMO. I would say its a tough one, but it should be achievable.
--- First post on a thread btw... Have been checking the forums out for a while though.