I’ll start off with what I have been doing so far. I have a spreadsheet holding my drivers’ attributes before the races, after the races, beginning of the current season and of the time I hired them, also training values. Then these are compared showing me changes in attributes after the race, after the training, this season and overall.
Seeing these changes allows me to counter natural decrease of skills and set goals for training.
What I am suggesting is that these changes are shown in game. This would make a nice premium feature for those who pay for the game as it saves their time while it doesn’t give them any real advantage.
As of the way these should be shown, I’m fine with numeric values but nice graphs and charts would make it even better.