iRacing is a subscription-based racing simulation service for Microsoft Windows, Linux and OS X. The company also offers a pay-to-play service for Xbox One and PlayStation 4. iRacing was founded in 2004 by David Kaemmer and John Henry. The company is headquartered in Bedford, Massachusetts, USA. iRacing offers both individual and team-based competitions. The service includes more than 35 tracks and 200 cars, and simulates real-world conditions such as weather, tire wear, and damage. iRacing is used by professional drivers and teams from NASCAR, IndyCar, IMSA, World Endurance Championship, and Formula One. The service has also been used by the military and NASA for training purposes.
I know that iRacing offers a telemetry service that allows players to see data about their own performance, as well as the performance of other players. This data can be used to improve one's own driving, or to simply compare lap times. The service is subscription-based, and costs $9.99 per month.
There are many benefits to using telemetry services like iRacing, but ultimately it is up to the individual driver to decide whether or not to use them. Ultimately, telemetry services can help you to improve your driving skills and become a better racer.