I really wish I didn't already have the snows on my stealth performance car! I was seeing 0-60 in 3.06 seconds (1' rollout) before the the software update on factory aeros, so I'm hoping to get down into the 2s after. Not going to happen on X-ice tires though as they are struggling for grip under any strong acceleration. I'm planning to get a super light 18" summer wheel and tire combo (OZ Superleggera most likely), which should help drop times over the stock wheels.
FWIW My car is faster with snows on 18s than SuperSports on 19s. Then again you're pushing more power than I.