If the person pulling out had checked twice he would've realised the lambo was speeding and probably tutted and shaken his head thinking what a pleb. Then would've pulled out behind.
How long when pulling out of a side street in london do you advise leaving between this first check and second check?
As I must confess that personally I only check once, if there is a good clear space then I pull out, I tend to check for long enough to give me a guage of the speed of a car if its near me, but if its a long way away I dont wait until its close enough to judge its speed accurately before it pulls out, I just assume it will be doing somewhere within 100% above the speed limit unless its showing blue lights.
I suspect that to do much more than I do would mean greatly increased traffic somewhere as busy as london.
Thankfully it was a nice solid lambo, not a biker that would've either been through the passenger window head first or straight over the bonnet.
Yes if the same idiotic speed was done by a biker then the biker would have paid the penalty for his same mistake far more. (although might have managed to swerve, a bike gives you more options on narrow city streets than 7 foot or so width of supercar does which means in a supercar you need to be more cautious of course)
