Currently this project is awaiting one part before I can install it into my car - the Mauseberry power switch. 

I've got the 7" screen fitted and just needing a spot of hot glue to hold it in place.

The Pi is running the software as expected, and I have added a USB microphone for input and it's working like a charm.

Once the power switch board arrived it'll be a case of plugging in the Pi and wiring the board to the car's battery and ignition.