Okay first me start by saying prior to this current Grand Prix I had an R/T Charger that would max out at about 140, also I read about Mike AKA Mr. Angry's Fusion maxing out at 111 in a blog on CarDomain which made me even more pissed.
So last night on my way to work (empty highway late at night) and my first time driving my new Grand Prix in the highway without my dad I tried to max it out, and let me tell you how disappointed I was. It would go up to 109 mph, rev up for a half a second and go down 4-6 mph than slowly back up, I was very angry. I was temporary driving other cars (older Mazda's, Infiniti's and Honda's) and they would go over that. The latest was a 98 Honda Accord with a four banger that would hit 120, I'm very very disappointed with this, any input or suggestions would be appreciated.