There are confirmed 0-60 runs of 335 AT @ ~4.8. Based on magazines, real accounts, and even a Gtech Video (In only D-Mode). I believe the IS350 has a chance with a MT if the driver is a novice. But an AT? Just stomp and go! Not to mention once you hit the curves, bye bye.
None-the-less, both cars are very nice. The IS obviously has more toys and a more modern interior. Personally I do not like the rear-end of either car, but I chose the 335 for overall sportiness & mod potential, XEDE anyone?
2007 E90 335i w/ Auto, Nav, Prem, Sport, Heated Seats
2007 Toyota Camry Hybrid
2005 Honda Odyssey EX