I agree with all the comments re close passes, but sometimes cyclists do themselves no favours wrt antagonising motorists.
A few week ago MrsPK and I were cycling along this road (in the same direction as the silver car), which some might recognise as the road from Kingston bridge to Hampton Court.
There is a perfectly acceptable Bike Lane, with solid line - we have never had any issues with close passes along this road.
But, we came up behind a group of 12/14 cyclists, in matching kit and on decent bikes, doing around 12/14ish mph - much less than we anted to do
They were in a double line with the solid white line down the middle of their double line.
Now we could argue the toss as to whether a double line in this situation was acceptable or not.
What was not acceptable, was that the back pair were off-set, with the left hand man on the white line and the right hand man well to his right making any pass impossible without crossing into the oncoming traffic. They did this along the whole length of the road -about 1 mile. Frankly, as a fellow cyclist, I thought they were taking the pish.