Once, I was along with my cousin who was driving my Mehran VXR en route from Karachi to Hyderabad at 3 in the morning (long story why). While we were talking, he just looked at the speedometer and he exlaimed we were doing 135 Km/h. I looked and sure enough, it was clocking a 135 and counting. And that on CNG!!! Maybe we went downhill at some point and thats why it was at that speed, but man the car was shaking like it was gonna come apart, and we slowed down after that.
Other than that, my Kia Classic NGV has topped upto 140 Km/h on the Jamshoro road that goes all the way to Sehwan Sharif and Dadu. No idea on petrol cause I havent driven on petrol on these roads.
No pictures I'm afraid.