Ok, so consensus seems to be coming around the reference is to the X2010 and X2011.
I just wondered aloud because I read in some forum that for breaking in NASCARS you must do the oil change before ever driving the car and the Toyotas in particular, according to the post, get a slight extra boost over others. So having done that and breaking in the car properly to achieve max power I went into the NASCAR rooms with it (Brian Vickers Camry) and for the most part the car is competitive like any other but I've noticed on two occasions where it just seems to fly past the others. On one of those occasions I actually got kicked and accused of being a hacker - which I'm not, and on the other I got kicked as well but nobody gave me any indication why...and it was a 'Dirty' race so it couldn't have been my driving.