Mine must fit me like a glove too, couple trips to arizona and new mexico, and never stiff or sore. Love the heated seats too. The only thing I will do is take my wallet out and put it right there by the e-brake handle, just dont want to put a big dent in the seat from the wallet full of crap (no money) lol. I will agree with a HUGE difference in elevation. Coming from inbetween 6500 and 9500 based whether I am at home or work, to say the phoenix area, it felt like I was driving a rocket sled in comparison. And a MAJOR gas improvement. Went from say 28 to about 38 MPG. I envy those of you that live at low elevations, this car really comes alive, I just wonder what it would have been like if I would have had my sprint booster then?