Automotive measuring instruments and electronic control systems thereof, namely, pressure, temperature, fuel level, air/fuel ratio, boost/vacuum, vacuum, and quad gauges, tachometers, speedometers, ammeters, voltmeters, hour meters, and pyrometers; automotive measuring instruments and electronic control systems thereof, namely, pods, kits, and panels that include pressure, temperature, fuel level, air/fuel ratio, boost/vacuum, vacuum, and quad gauges, tachometers, speedometers, ammeters, voltmeters, hour meters, and pyrometers; automotive measuring instruments and electronic control systems thereof, namely, sensors and microprocessor-driven control systems for pressure, temperature, fuel level, air/fuel ratio, boost/vacuum, vacuum, and quad gauges, tachometers, speedometers, ammeters, voltmeters, hour meters, and pyrometers