36. Is there a limit to the number of tires that can be changed per car per race?

The F1 Technical Regulations stipulate that each car can use a maximum of 40 dry tires and 28 wet tires in total during a stint, including free practice, qualifying, warm-up and the final race. During the free practice phase, a driver can choose between two dry tire sizes for his car, but before qualifying practice begins, he has to decide which dry tires he wants to use. Each tire is numbered to make it easier to count the number of tires used by a driver.Beginning in 1998, in an effort to reduce the speed of the cars, the FIA mandated that Formula One cars must use tires with grooves. In addition, the regulations limit the size of the tires: the maximum diameter of the tires is 13 inches.

37. How does a driver choose the hardness of a tire?

The choice of hard or soft tires is based on the characteristics of the driver, the design of the car, the temperature on the day of the race and the conditions of the track. In general, soft tires are used when the track is designed for slower speeds (e.g., more corners, shorter straights) or cooler temperatures to facilitate better control of the car. High speeds on the straights also wear the tires faster, so hard tires are mostly used for high speed track driving. Teams and drivers must find a balance between the various external conditions to use the most suitable tires for the day's race. This is because using hard tires reduces the driver's control of the car but reduces the number of pit stops to change tires due to less wear on the tires, while using soft tires wears out faster and increases the number of pit stops the driver has to make to change tires. The right choice of tires can sometimes allow a lagging car to come from behind and win the championship. This is why tire changes are one of the spectacles of Formula One, with well-trained teams able to change four tires and refill the fuel tanks of a pitted car within 5 to 10 seconds - depending on how much fuel is in the tank.

38. Are the cars inspected during the event?

Before the start of free practice, inspectors come to all the teams' garages to check that all the cars meet the technical specifications. In addition to this, there is also a sample inspection of cars that have completed the race after the official race. Cars that have violated the technical specifications can be disqualified for serious infringements, but of course this is ultimately up to the race committee to decide.

39. How are fuel checks carried out?

Prior to the start of the season, teams must submit a 10-liter sample of the fuel they will be using during the season, which will be analyzed in a special laboratory to ensure compliance with the F1 specifications. If this sample passes the test, the FIA will keep a copy as a 'fingerprint' of the team. When the team's fuel is sampled and tested in the future, this 'fingerprint' will be taken and analyzed against the fuel being used by the team to see if it is consistent. Teams may change fuel during the season, but must submit and approve fuel samples before doing so.

40. Can technologies such as ABS, stability control and four-wheel drive be used in Formula 1 cars?

No, this type of assisted driving technology is banned in F1.