Thanks
@ilovecoffee for your debug efforts. Yes, I also did the sound deadening in the rear wheel area. I didn’t do the coilover, but the cabin is pretty quiet now. Additionally, when I was putting back the trims and panels after putting sound deadening foams, I foam padded few of the plastic pins that are not automotive clip type, because they were causing creaking sound (plastic over plastic friction).
@WhiteWi , there are really design issues. These problems have been solved by other car manufacturers long time ago. I guess we are paying 55-60k for a tin can placed on an amazing powertrain and now it’s up to us to either live with it or improve it as much as we can.