Well it was a two lane road, but it was a friends car and my first time in it.
He later got chased by the cops doing about 160 but he was far enough ahead that they never caught him. He mentioned something about a helicopter too.
150 on dirt would be a blast though. I think I've only done about 80 on dirt
I never did 150 on dirt, the best i ever did was around 120, but not in a car that had any sort of speedometer. Trees and rocks are a lot meaner at those speeds than normal cruising speeds.
I've never been chased by a helicopter! ha would be fun, though, in my younger days.