I was never a fan of KERS/DRS. Always felt gimmicky like P2P in Indy. I kind of understand KERS, because it's a very faint grasp at justifying racing 22 cars for 2 hours at full bore as being environmentally friendly because they happen to recycle a little bit of energy.
Don't want to completely derail the other thread, so.....
I'm a CART/Champ Car guy, so when that series introduced P2P in 2003 or whenever, it made sense; they were a failing model and needed to attract new fans and so they went heavy with street races (which are awesome, btw, but more accessible to noobs) and gimmicks like P2P and mandatory use of both tire compounds (to appease the great gods of Bridgestone). I was saddened when F1 adopted these contrivances, because F1 isn't in a desperate spiral of needing new fans quickly. I don't consider a DRS overtake to be legitimate. There's a great weekly podcast I listen to from Formula1Blog.com and the professional drivers they have to co-present the 'cast refuse to award the 'pass of the race' to anything involving DRS. They call it 'Donkey Racing System' and sell anti-KERS merch on their site.
I've never understood the mania with which the FIA has pursued this 'green' thing. Motor racing isn't green. It's wasteful. Teams spend millions of dollars on components for cars that may only be used in one race before being scrapped; for example, the steering racks for Monaco are completely useless anywhere else (even Hungary). I'm all for increased environmental efficiency, but let's not mince words here. F1 is a hideously wasteful sport.
Yet despite this, the carbon footprint of F1 is still incredibly small. Back in the days of unlimited testing (*sigh*....), the total amount of fuel burned by every F1 team combined for the whole season - every test mile, every practice and qualifying lap, and the races themselves - was less than the amount of Jet A fuel burned by a single trans-Atlantic airliner going from New York to London.
The engines are remarkably efficient at turning gas into noise and fury; sure, they only get perhaps 4-6 mph, but they're spinning at 18,500 rpm. Slowed down to road car speeds of ~5000 rpm (which is actually about where an F1 car idles
), that's more like 20+mpg efficiency. From a highly strung proprietary racing motor, that, oh by the way, has no measurable emissions. (I remember the Ferrari 550 Maranello being the first production car I ever heard about having zero measurable emissions)
It says here that F1 going 'green' is an attempt to induce more manufacturers back to the sport. When they aren't here, everyone complains about how tight budgets are. When they are here, everyone complains about how much money they spend and the manus themselves endlessly gripe about the rules. At the end, the only green in F1 is money.