I have a close friend with one, and I'll tell you-- the thing is a rocket. It has the Cadillac Northstar V8-- and it redlines, (and pulls hard to) 6500RPM. Very impressive. Top speed limited at 110 because he doesn't have Z rated tires... I'll bet the car is good for 150 MPH. Frank PS Bonnevilles are discontinued-- 2005 is the last year. Too bad.