This year F1 racing will be even more exciting to watch with the new energy recovery systems – KERS.  The cars will have one of two methods of storing braking energy and provide that power on-demand via a boost button on the cars.  It’s generating a lot of controversy over safety; time will tell.  Read more here: http://www.newscientist.com/article/mg20127015.800-f1-cars-get-a-power-boost-but-at-what-risk.html?DCMP=OTC-rss&nsref=online-news

See a video of the fly-wheel design here:

http://www.williamshybridpower.com/f1/

Also check out this blog entry:

http://blog.hitzenglish.com/2008/12/formula-one-kinetic-energy-recovery.html