Recently by chance, while on vacation ended up with 2 separate rented Chevrolet Impalas, this has a menu where you can change the speedometer display and information from "English" to Metric. The speedometer is analog, it changes the display to km/h from mph. Not only that, the menu now displays all odometer and trip odometer information to km, fuel economy to L/100 km, average speed to km/h, tire pressure to kPa for each wheel, and the external temperature to Celsius. I'm not particularly enamored by these cars, but I have to admit GM has done a good job changing the display to accurately display everything in SI. I found it particularly interesting that the tire pressures were 210 kPa cold and heated up after driving to about 240. The display was displayed to the nearest one kPa.
 
Michael Payne
Potomac Falls Virginia USA

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