Some drivers go vroom when pass! Others let up on the gas!

As a cyclist I get numerous opportunities to speculate on why the drivers who pass me leave such varying space between their car and my bike:

If ego of the ‘driver ace’
is bigger than their whatever car:
Then rarely enough passing space
as such driver entitled by far

While going to be plenty room
if smaller ego than the auto:
Then passing goes smooth without vroom
unless driver on phone like blotto

But needs not cause a glitch:
If from roadway cyclists switch
to their much safer niche
of riding down in the ditch!