Coming in 1.25:
A mini research progress bar plus a customer count in the showroom tooltips 
I like that, Very Nice.
I had a thought about the possibility of adding the time it takes for a car to move through the line, when you click on the vehicle still on the line, then it would show the time it has been on the line, so if it took 8 hours to move through the line, or 30 minutes. Just thoughts.
Yup, I also agree that would be a cool metric to track.
@cliffski, now that we can track cars with the follow cam, I think it would be cool to have the time on that little window. Maybe even extend the time that window stays once it leaves the production floor for the sales floor. Then we could still watch it until it sells.
Ha! Thats an awesome idea. I should add this to my list