Im having the same problem when its in idle it seems to want to turn off and it has and it slacks on picking up speed

 

so here goes..

2003 rx8 91k miles,

never had a hot start problem in my ownership, drove really well,
until.... last night i was driving her hard, red line up through the gears then the missus said to slow down so i did, as i was letting the car slow down i saw the eml flashing, then after about 1/2 a mile i heard a different tone from the engine and loss of power so pulled up at some lights and turned her off.. then tried to restart her but wouldnt.... sounded like she was flooded, left her 5 mins and tried to start again and she did but was running as rough as a badgers backside... limped her home not being able to get much speed or revs out of her, every set of lights i had to fettle the throttle to stop her from stalling. if i was changing down it was stalling so had to bump on the run to keep her going.. got home..JUST .. then after a couple of hours wen she had cooled i tried to restart and she did first turn but still sounded like crap, engine knocking noise and bad vibration, smoke from exhausts idled roughly...then stalled.left it since to get some opinions but im alrrady fearing the worst so any help is appreciated...

 

Update:
Same problem. Idle is rough. Not stalling, but not improving. Took it to two mechanics. No luck. Here's a video of a sound. It's still obvious in my exhaust as well.


Any ideas?

 

Here a video of what my RPMs are looking like from inside the car. I recently had a light for A/F ratios. then it went away. Like I said I've taken it to the mechanic twice and neither time he has any clue. Any ideas???