This is relatively simple it updates the race wins and podiums for every driver and comes with the option of reduced tire wear which I can't find the source, unfortunately.
You can choose from the end of 2016 or the end of the 2013 season it is up to you.
IT DOES NOT INCLUDE, any 2016 modifications it is just updated stats on the 2013 drivers!
Updated driver stats (2016) 2017-01-03
Or end of 2013 season