Hiya this first line
794,814,800 CAR this is car hp for qualifying and then race, the third is a variable number that can mean 814 plus or minus 800 to both figures
16099,400,16128,400 DRIVER
this row means grip level for the driver qualifying with a variable of 400 and then race grip for the driver with a variable of 400 plus or minus of up to 400 of the 16128 start.
as an example from one of mine
[Team #00]
Name=Mercedes,Mercedes
Performance=855,855,0
First Driver=44,Lewis Hamilton,16249,181,16182,103,
Second Driver=77,Valtteri Bottas,16256,249,16116,269
this shows no variance in hp for the engine and stays at 855 for qualifying and the race
the second set show not much drop in grip level for Hamilton but a bit more for Bottas to show his lack of consistency
hope this helps a bit