Seeing as people here are posting all sorts of anecdotal accounts of almost being hit by a cyclist from years ago, check out
this actual dashcam footage of a Porsche driver from a couple of years ago that killed a pregnant teacher and tell me that cycles are equal to cars.
To suggest that there is any degree of equivalence is like saying you should get a firearms licence for a toy bow and arrow. This is 2 tons of metal capable of doing ridiculous speeds that any idiot could walk in and drive away. If anyone is suggesting that cylists have to be insured and registered, then, by applying the same thresholds of risk mitigation, cars should be banned.
FWIW, I have witnessed numerous incidents on our local small a and b roads over the last couple of years in which I have seen drivers execute similar, if less extreme, overtaking manoeuvres and it's bloody terrifying.
Maybe I should post this in the adjacent thread about hammering around B roads in Fiesta STs?