One thing that I just noticed that you said was that you've tried it in your kitchen and in front of your complex.
I sounds to me that there is interferance comming from some of your neighbors. I have heard that cordless and cell phones can mess with our cars working the right way.
Also anything in there apartments that might be digital could also mess with the cars working the right way.
I would recomend trying to take your car far away from anything that was electrical including powerlines and see if your car works better.
If that doesn't work then your "RS" might have got a bad batch of cars. I hope this helps you out some...
