2nd page: http://www.mp3car.com/newbie/148162-...cluster-2.html
1st page: http://compcar.ru/forum/showthread.php?t=9704
Doesn't look overly complicated, TBHWY. In gleaning information from the last thread, looks like an Arduino-based system, and some custom components. There's info on where to source the LCD, as well.
Hmmmmmmmmmmmmmmmmm.....