My '10 SXT just crossed 128k and still running strong, though there's a slight knock that is more pronounced when it is cold. I don't hear it all the time, usually at start up and for a few minutes thereafter. No upgrades beyond the cosmetic variety. I recall thinking, when I first bought it (in 2010, with 6800 miles on the clock)- why didn't I spring for the V8? So that's next. Eventually.