indicators. If you want to see an instrument panel with gauges, you need to sit behind the controls of an airliner or stand in the wheelhouse of a sea-going ship. All you’ll find in cars, no matter how expensive they are, are rough indicators.” Basically, in a nutshell, if your life depends on one psi, or one knot of airspeed, or one degree of heading, or a few revolutions per minute (as when you’re flying), you want gauges and related systems designed for accuracy. Sometimes vehicle owners think that’s what they’re getting with their high-tech configurable displays, but behind all that dazzle is some very inaccurate gear.