I've been up to 180mph....of course that was in my dads friends Viper..on the track....it was ungawdly fast...I had the shakey leg syndrom, sweaty everything, and a grin on my face that was there for about a week afterwards...on a side note, he recently crashed that viper into the back of a truck..lucky for him it was a low truck, so he didn't go under...but he did break both legs, and got a nice little fine for going 130mph on the highway....questionable person, fast car...a real waste of a nice ACR viper