Just wanted to share my thoughts with anybody interested about my experience with the GS250 that I was given as a courtesy car whilst my CT was in for it's year 2 service.
Maybe I was a bit put off that the GS I was provided with wasn't as clean as my car usually is, but I wasn't as impressed with it as I thought I would be.
Yes, it was more spacious, and the engine more refined. I liked the automatic parking brake (you didn't have to do anything, just switch on and shift to Drive to start and shift to Park to engage), also the display showed audio, nav and climate control settings all at the same time, and the indicator had the tap for three blinks when switching lanes which I l had on a previous C Class. The best thing though, was the much reduced road noise compared to the CT, it was very relaxing both cruising down the motorway and trundling along in town.
However, despite all this, I was still happy to get back into my CT afterwards. It just felt more 'me'.... I thought I might be tempted to upgrade, but thankfully (for my bank balance) it really was good to have my own car back