this information came from http://www.leftlanenews.com/pontiac-g8-st.html, The sport truck is powered by the same 6.0-liter V8 used in the G8 GT sedan. It puts out 361 horsepower and 385 pound-feet of torque. The combination of a six-speed automatic transmission and Active Fuel Management technology provides good fuel economy and a zero to 60 mph time of 5.4 seconds. for further information about this car please go tohttp://www.leftlanenews.com/pontiac-g8-st.html.