My impression is that, for emission purposes, idle is electronically set a bit too low. That may contribute to the feel that the engine is bogging -- especially if the car has been idling for a bit at a light. Check too if the transmission, left in D, is starting out in second gear as when it's in the "winter" mode. I haven't had mine that long, but for what it's worth I have taken to tap shift it over one at lights just to make sure it's starting out in first. The transmission control unit uses adaptive logic, so hopefully once I have it "trained" it should follow suit. That and I'm so used to downshifting a stick to first when i stop that it feels unnatural not to. I haven't seen any hesitation on first gear starts in the short time I've had mine.