I usually use 89 octane. Did a couple hundred mile trip this weekend and used 93 octane. Didn't notice any diffference in performance, but I don't drive the car hard. Only have 1400 miles on the car, so still waiting for it to loosen up. I do really enjoy driving this car. Excellent handling response, decent stopping, quite cabin, great sound system, nice body lines. A little more get up would be nice, but overall, very impressed so far.
2011 T06 (Rüsselsheim)