This may have been covered in some earlier posts regarding misfires so forgive me if I'm misinterpreting my Saab's symptoms... Just noticed it in the last couple times I've driven the car: at moderate to highway speeds, under heavy acceleration, the engine seems to quit and restart causing a couple good jolts as the turbo goes through 1/2 to 3/4 boost. Any other time, the engine seems to run smoothly. I'm not getting any CEL or codes (other than the fuel quantity sensor that's been out to lunch for a couple years now...). Under normal acceleration, there's no issue whatsoever. Engine is still strong (for 215K+ miles anyway) and smooth otherwise. Does this sound like an issue with the coils as described in some older threads or is this something more sinister?