well the argument for them is that they level the playing field somewhat, in previous seasons we have seen cars struggle to pass for 10+ laps and when they finally do they are suddenly 1.5 seconds a lap quicker. that indicates that it is too hard to overtake. whether DRS and KERS is the right way about it I'm not sure. I'd rather go back to a focus on mechanical grip, restrict the aero, being back the V10s or better yet V12s and rev limit and technology limit them to keep speeds reasonable. These V8s sound horrible and if F1 moves to 4 cylinder turbo I'll stop watching. Even hearing a V10 come out on track makes the hairs on the back of the neck stand up. The V8s sound horrible even moreso now they are doing part throttle blown diffuser trickery.