I went to see the S3 too. I still cannot comprise in power. S3 is 188kW and the price difference in the Audi and BMW is not that much. I will on the 135i automatic with some useful options.
You will be surprised! I actually like the 135 automatic box! I test drove the Lexus ISF, which suppose to have some fancy double clutch 8 speed that changes within 0.1 of second. To me, I found the 135i is not that far off in manual mode you know.