I was driving the R yesterday and during acceleration, the car would buck and hesitate, as if it was missfiring. It seemed to happen often after that, even with little trottle input. Thankfully the CE light came on. I took it to the dealer this morning, and they've ordered a new fuel pressure regulator (per the CE light) - so hopefully that will remedy the problem. <p>I remember someone else posting about this sort of hesitation recently as well, but couldn't find the post.