if I recall right the stated time for our car is a shoe of a driver on an early morning run little to no traffic full track (not the stupid chicanes on the long straight away for traffic integration.)
Any ways you should take those times and hell even the tuskabusa track times as a grain of salt there are too many variables iv heard teams using full race slicks ive heard of companies upping boost, or tweaking the computer a little, or running the easter egg that no one knows about except the race team and all the engineers. and tuskabussa has traffic issues they only run 3 laps ive seen tons of great cars get hold up by traffic on the first lap and not be able to recover but you can see its charging through the course, its generally the car that can get the inside of the first turn that wins there.