It means the car with the higher temp on the display, will be able to cool the cabin quicker, maintain the temp better and has the ability to go even cooler. Car with 20 on the display, occupants finding it a bit warm, want it cooler, turn it down 3 clicks to LOW. Car with 22 does the same and reads 19 on the display. Still not cool enough. Car with LOW can't get any cooler. Car with 19 still has more adjustment to be able to get cooler. Sorry, disagree. With the Euro you can set the compressor to be always on, so it will always be blowing cold air. With the FG in semi-auto mode, it'll be blowing cool air one minute then the compressor decides to switch itself off then blow out ambient air......WTF.