I was also thinking of coal. 
I read in national Geo Mag that at the current rate of electrical power
generation via burning coal in the US, there is 250 years worth of coal left
!
Which is horrible news from a pollution view point, but cars can run fine on
coal gas I believe, if built for it. 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Paul N. Oliver
Sent: Sunday, December 09, 2007 11:09 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: SALTWATER FUEL-wood burning vehicles of ww2

You get even more power if you burn old tires. That smoke is really bad,
makes wood smoke smell like sweat perfume.
Paul
----- Original Message -----
From: "Jake de Villiers" <crescentbeachguitar@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, December 03, 2007 8:23 PM
Subject: Re: SALTWATER FUEL-wood burning vehicles of ww2

> Damn hippies.  Can you imagine what the air quality would be like if we
> were
> all burning wood in our cars?  At rush hour?  You wouldn't be able to see
> your hand in front of your face!
>
>