No update at this point...so far, it's just happened twice. But, it "felt" as though it were the engine that was acting up. The only thing that I have come up with as a possibility is that there was a major misfire going on...but I don't know enough about engines to really say. It was very strange, though. Lots of noise and LOTS of smoke. It had cooled down here the last couple weeks, and it's possible that it may have something to do with the temps. We are warming up, though...we may hit 78-80 degrees this week, so we'll see if it has any effect.
Be sure to let me know about how how your struts work out for you...I'm VERY interested in getting some feedback about replacement struts for this car. Thanks.