>Something car manufacturers still haven't cottoned on to. For racing applications it's pretty common to have a multicolor LEDs as backlight for your gauges so

>Something car manufacturers still haven't cottoned on to. For racing applications it's pretty common to have a multicolor LEDs as backlight for your gauges so your whatever gauge turns red when the reading is bad. For normal cars the goal is totally different. They want to give you the minimum information needed to operate the vehicle and only alert when something is critically wrong. This is why proper oil pressure gauges went the way of the dodo in most vehicles.