Ok, I'll play. Here's my 07 Mazda RX8 with Mobil 1 0w40.
Car still only has 36k miles in 13 years, but I ran last oil change 7700 miles and 7 YEARS.
Car was mostly driven on hwy 400 miles to track day where it got warmed for 3 or 4 20 minute sessions.
That's about 4 different track days, and lots of sitting around.
It's a 6 speed auto, and has 18,800 btu trans cooler which takes 14 degs out of system.
On days as high as 70 deg f, I can cruise and coolant goes back to 175 deg f which means thermostat is slowing coolant and oil coolers are nearly enough.
I think the lead and copper metals are insignificant, and would have come out at 1 or 2 ppm during 7 changes that most people would do.
Oil came oil still brownish and yellowish, not black as I expected.