I've been saying about this idea for ages. Formula 2 have an over-boost button, which allows them to increase their revs for a limited amount of time, 8 times during a race. F1 could easily implement something like this. The engines are already rev limited. Just add a button that allows them to exceed that rev limit, something like 8 or 15 times during a race.
It increases overtaking, without heavily restricting aero regs and thus doesn't remove the whole idea of F1 being the pinnacle of engineering.

I'm all for a boost button.
KERS simply doesn't work, because to be fair, all the cars need to be using it. But if all the cars are using it, KERS just negates itself really and becomes pointless. It simply doesn't increase overtaking. Its just another crappy green thing, which lets be frank, isn't saving the world
