They use BAR...don't ask what it stand for? I think if the car was imported to Swiss land though, they simply installed a km/h from the factory, as they were readily available vs making a boost gauge for one car.DontKnow:
the bar is approximately 1 atm, or the pressure of the atmosphere that we live in (about 14.7 psi). So for every bar it's the equivalent of increasing the pressure of the atmosphere by that factor (1 bar=14.5psi, 2 bar=29psi, 3 bar=43.5 psi, etc). It's not exact and I have no idea why they don't use atm instead since it's closer, guess it's just another one of the messed up units that we use.
Here are some funny old units of measurement I learned in one of my classes that you guys might find amusing:
poppy seed - approx 3/4 of an inch
Shaftment - width of hand and outstretched thumb 6 1/2 inches
Span - width of outstretched hand from thumb to pinky
Cubit - length of forearm, 18 inches
Fathom - from one fingertip to the other, 6 feet
Furlong - Distance a plow team could be driven without rest, varied lengths determined by region. Now deemed 660 ft
Mile - originally 5000 ft, lengthened to 5280 ft to make it an even number of furlongs
I thought some of those were pretty interesting and most of them are obsolete now, but were commonly used in the 1000s