FORMULAVEE.ORG

Drop 10lbs off your car right now, with no sacrifice in safety. Lithium Ion batteries More cranking power than your existing battery, smaller size, and no sulfation. 2.1 lbs !!! Compare to your AGM, etc battery at 13lbs.

http://sracing.com/Store/Electrical/Electrical.htm

Just add a super light weight 6 1/4lbs starter to that and you are getting close to 20lbs.!!!

Dave