Movig car from number

I am trying to animate a scoreboard of sorts where you put in the scores and the first car to reach the finish wins, but i need some help doing it. I want to have a text box, where you type in the score and this moves the image along, is this possible?

Also can it be designed to level up, so that once one car has reached the end, they will start at the beginning in a different car, so if the first target was 100, if you imputed 105, the car would be the better one at space 5?

Finally would it be possible to save, so you can input the scores, walk away and come back, reload and the previous scores would be there?

TIA

Stuart