I have DashDyno SPD PRO PACK A-501 . an exciting new in-vehicle mounted device for the automotive enthusiast. Measure instant and average fuel economy, data log engine sensors and GPS position, measure horsepower and torque, trigger alarms lights, and diagnose that pesky Check Engine light. Using a PC, watch a synchronized playback of sensor and GPS data with Google Earth flying above the terrain you just traveled. DashDyno can do this and a whole lot more.

DashDyno can be handheld or mounted inside a vehicle. A windshield suction cup mount with a quick release feature makes installation a snap. It easily connects to any 1996 or newer vehicle using the OBD II diagnostic port located under the dashboard - no hard wiring is required. The diagnostic port powers the device and offers access to over a hundred different vehicle parameters; such as engine RPM, oxygen sensors, fuel economy, and air-fuel ratio.

here is a link to it. http://www.auterraweb.com/

PRICE IS $300

 

still for sale ..