Thanks. Thing is they seem to have exactly the same dials and even the colour as the originals in the dash. And look at that text.
Someone did an excellent job making the installation look “factory.” The center console area of the 2000 GTV has ample space above the gear shift area and is an obvious place to mount extra gauges, either in the console or under the dash. This area was used to mount the A/C blower/controls (of so equipped by the dealer), but not “optional” gauges from Alfa. If you need further proof, you could check the wiring to see how these gauges are sliced into the harness. That should provide you clues as to the nature of the installation.