There's trailer Cars that are totally set for the track and could be driven on the street. People with unlimited budgets who can test and tune and try anything they want day in and day out... There's people with money for unlimited Dino Time and stuff like that for optimize Tunes..
There's so many different factors it's not even funny.
Again I have a friend who does this and who does that is just a sack of crap in the wind as far as I'm concerned. I want to hear what somebody did with their own two hands.... And words from the horse's mouth of the person who built it and drives it... And what it took to get there...