i guess the guy in the middle will take off in the first 50metres since it's a scooter, the other 4 will catch up eventually but the guy to the left will be left by the other 3 coz he's riding a "trike" style 125cc bike compared to 3 of the semi-automatic 125cc in the pics.
But yeah, don't you just hate these? What i do back then, when on stop, is to really put my car almost just outside the yellow "open intersection" box, so no bikes will be infront of me. Then just before go, will try to rev the car a little so that they will know i will blast off once it turns green.