2000 Ford Mustang speedometer in diagnostic mode.
An idea I had for an old high school project
Here's a follow up photo with my 2004 Mustang GT's speedometer..
It never made explore, but it quickly made #1 for my most popular picture, and is my most viewed(25,626 views), commented/favorited shot ever.
When I took this shot I accidentally burnt up the fuel pump, by cycling it on and off too much, cause I was trying to get the best shot, oops lesson learned.