On the second issue.....is this part of the extra cost accident avoidance feature?I think we're discussing two completely separate problems in this thread.
From what I've been reading the first is a "misfire" or "surging/lack of power" at speed. I'm guessing that they've had a few issues with the ignition systems on these. Luckily I haven't had any problems yet with that.
The second issue is a "surge" or "quick acceleration" at very slow speeds... we're talking like under 2MPH here. This is something I experience very regularly and I'm fairly convinced it's a programming "glitch" that will hopefully get corrected in a computer update in the near future.
I notice it most when doing a "rolling stop" maneuver.. like at a stop sign or of a car in front of me decides to start going right as I'm coming to a stop. I get down to almost a creep (under 2mph maybe even slower) and even if I take my foot off the brake pedal it still continues to come to a stop. The second it stops moving it will then accelerate a bit if your foot is not on the brake... nothing dramatic but it can really catch you off guard if you're not expecting it! It's almost as if the computer is convinced that you want to come to a complete stop and there's nothing you can do to change its mind. Seems very strange.
I experience this equally in both normal AND sport mode.