The energy to crack the water was from solar panels mounted on the roof. Apparently they have a similar system now hybridized with a gasoline engine in a 7 series.
http://www.bmwworld.com/models/750hl.htm >From: Christopher Fisk <[EMAIL PROTECTED]> >Date: Wed Aug 17 13:39:10 CDT 2005 >To: The Hardware List <hardware@hardwaregroup.com> >Subject: Re: RE: Re: [H] Gas prices >On Wed, 17 Aug 2005, Ben Ruset wrote: > >> A few years ago BMW showed off a 5 series that ran off water. It >> cracked the water into hydrogen within the car itself. >> >> Of course that tech won't ever see the light of day. :( > >This doesn't make sense. It takes energy to split water into Oxygen and >hydrogen. To then burn that hydrogen to power the car is just a waste of >energy. Why not just use the energy used to crack the water to power the >car? There is no such thing as a perpetual motion machine =) > > > >Christopher Fisk >-- >BOFH Excuse #330: >quantum decoherence