Interesting your take on the IS350 versus the 135. I do like the IS350 which my friend has (and my boss has an IS-F that I've driven) and I find the IS to be softer and less connected to the road than my 135 vert and so does my friend. It's especially true when you push it to the limits in my opinion.
TiAg/Coral Red 135i Vert
X3 35i M-Sport received but haven't taken pics yet.