marriage made in heaven what does it mean that the driver managed to brake before the impact?

Answer 1

Nothing much it isn't a very important clue.

Answer 2

Anonymous is right. It's not a useful piece of information for your case. It's more a situation of Phelps talking to himself. For more info, see this guide: http://www.sleeandtopher.com/guide/l-a-noire-a-marriage-made-in-heaven-case-guide/