The 135 is livable in the city, especially once you ditch the runflats -- performance aside, regular tires make the ride much much less harsh over pothole-filled roads. You are never going to approach the limits of the engine inside the city, though, obviously.
The big difference you were feeling was probably 17" vs 18" rims, is my guess - the 18s transmit so much more harshness over potholes.
I agree with xantdieselx - get the car you want - both will be great in the city and with either one (especially the 135) you won't be able to use the power driving on city streets. That said, I have the 135, don't drive it hard in the city, but the full-throttle start onto route 2 to get to work is the highlight of my morning.
