Instruments that provide drivers with real-time information about a vehicle's operating conditions. They display critical data such as speed, engine RPM, fuel level, oil pressure, and coolant temperature, allowing drivers to monitor performance and identify potential issues. Gauges can be analog or digital, and they are essential for ensuring safe and efficient vehicle operation. Modern vehicles may also include gauges for turbo boost, battery voltage, and other parameters, depending on the vehicle's features and performance characteristics.