Yes. The safety aspects of the car and also the track have been vastly improved.
You are in the present and can make decisions about what to do or to change. You can't change the past.
no
No one can undo the past. what's past is past. But one could make things better in the present.
past: I was; you were; he/she/it was present: I am; you are; he/she/it is
Have is present tense. The past tense is had.
There is a past, present, and future. There was a past; there is a present and there will be a future.
what is present past
Present - am. Past - was and were.
Past - was Present - is Future - will be
Split it into two sections: first talk about the past as you will be able to gather more information that the present and all the good memories would be stored in the past, after you have talked about this move onto the present the here and now.
past: I did, you did, he/she/it did; present: I do, you do, he/she/it/does
They new ones go faster and stop better.