Anyone use or install these in an 8? Seems like a simple solution to obtain performance data:

http://www.beltronics.com/fx.html

Although it is intended for windshield mount, we could probably mount it somewhere in the dash.

 

this is similar to the Escort's (they make radars detectors, etc) G-Timer I believe, found here:

http://www.escortradar.com/gtimer.htm

The reason for the similarity is that Bel bought out Escort Radar...so many of their products are almost identical but with different externals

Cue you have the Nav system so I would wait and get something that uses the LCD for a display very OEM...very cool, good luck!