Hello,
I don't know if what i am doing with the WIKKISPEED project is relevant but I am building a "soft" dashboard. This is using the Arduino to read the sensors and then sending a protocol packet through Blue Tooth to a tablet device that renders the dials written in java. This would allow you to make your dashboard look like anything you wanted.
If you want any more information on this or any other of my current and past projects have a look at my website WWW.EmbeddedAT.com or drop me a PM.
Cheers Pete.