This cab was a Toyota Prius and had a taxi meter that I had never seen. The cabbie said it is only available from one manufacturer. GPS, information about type of fare, destination, and of course the meter. And a very modern credit card processing application is built into the same device.
I was amused that the cabbie used a Garmin for his GPS trip routing instead of the meter.
The vehicle is obviously green as well. Very quiet in this hybrid.