I recently ran a track day to try and reach 145 mph. Some say 142 is the top speed and a few have said 155, which i think is a little or a lot optimistic. Anywho I could not even get close. It felt pretty good, and handled well with the Firestone Firehawk Indy 500 tires, but I could only get 125 mph out of her. Any comments please, maybe I was doing something wrong?? One thing i thought of is I was letting it shift automatically although I was in Sport + mode. I was watching the speedo and really didn't know what gear or what rpm I was at. I was thinking maybe it won't pull that much speed unless youre in 7th or 6th gear??? Help??