how can I make him listen to reason?

The point of view of Marcel Rufo, child psychiatrist

We can completely understand the attitude of your father, Emmanuel, regarding his desire to drive. By doing this, he wants to prove his autonomy and that he remains able to continue leading his daily life. Please note that, if he were Italian, he would have to undergo a visual and cardiac fitness check every two years. And all the more so since he has already had a heart attack. This examination would be accompanied by several obligations: he would be required to no longer use the highway and he would have to limit his travel to a radius of 25 km around his home. Your father already agrees not to drive on long trips. Suggest that he move towards the Italian system while checking that he continues to do well physiologically. If you live close to your parents, try to travel with your father as often as possible to show him that you care about him. In any case, you can argue to him that the fear of his wife, your mother, adds to the need for him to no longer drive.