very very fast. I did the trip in roughly 2 hours (google maps says 157 miles 3hr 11 minutes). i left my house friday night at 10pm and got there before midnight which was my "deadline" because they wanted to go out and if i wasn't there by then, it would be a long ass lonely drive back. So regardless if i set cruise control or not, i was obviously cooking for long periods of time through NY, CT, and most of RI. Bottom line, the Z is a fast car and my ass was lucky not to have gotten caught that night... When i left monday, it took me well over 5 hours to get back because of the lovely monday traffic...everywhere.