do the engine gauges still work properly?

[xnomad]

The ranges are all off as well. For instance at higher altitudes, according to the Messerschmitt manual, the coolant would be overheating at the indicated temperature we get in the game.

In the game you don't see the temperatures drop at higher altitude, which they should because it's colder up there and as the boiling point of water drops with altitude your coolant would be turning to steam at the indicated levels shown.