Ok the thread title is a bit controversial but I´ll explain why I say this.
I am an experienced Gran Turismo driver with about 20 years in the series. I was successful in many competitions during this time and made it twice to the GT Academy Final in Silverstone. I´m able to do Top 100 lap times in GT Sport and I did thousands of laps around the Nordschleife.
This is my most favourite track and I would consider my times very good there. I´m always within a range of 4-8 seconds to the world records depending on car and class.
So I went for the Nordschleife Circuit Experience and expected a one try gold. This wasn't the case and it took me several attempts to beat the gold time of 6:37.800 only by a tenth. The same challenge in GT Sport has a gold time of 6.57.900 so over 20 seconds more, while the car physics in GT7 seem to be about 5 seconds slower per lap.
So I did more laps and tried the best I could do and got a 6:34.090. Of course this lap wasn't perfect and there will be aliens doing sub 6:30 but I guess no average player will ever get close to the gold time.
From the result of past events and daily races on the Nordschleife I guess there are only a few thousand players around the world who could beat this gold time. If we assume GT7 will sell several million copies this are less than 0,1% of all players.