Get a float transferred between two scenes and scripts

I have two scenes, one where you type in the speed of a car via Input Field, and the next one, with a car with a script attached to it, with the float "speed".

Script Nr. 1:

 public static class Data
 {
     private static int speed;
 
     
     public static int Speed
     {
         get
         {
             return speed;
         }
 
         set
         {
             speed = value;
         }
     }
 }

And Scipt Nr. 2:

 public class Driving : MonoBehaviour {
 
 
     float speed=0f;
 }

I'm just a beginner and tried the whole day, my first try with script 1 was this:

 public class Data : MonoBehaviour {
 
     static public float speed=10f;
 
     public InputField speedField;
 
     void OnSubmit()
     {
         speed = float.Parse(speedField.text);
         Debug.Log(speed);
     }
 }

• But some guys on Srtack Overflow told me I should make it not this way. I don't understand where I have to attach the first script and how I transfer speed from scene 1 to scene 2 and from script Data to Driving. Thanks