Buy a diesel car with easy access to the internal engine . Convert it to biodiesel. Needs a plastic five gallon tank in the trunk to hold the second fuel. Get it from restaurants and strain the crap from the liquid. Run coolant through the second fuel tank. It's on the internet. Veggie cars.
Do you like a 3% + dividend each quarter? Do you see any better options for your money? Do you like the growth prospects in India, China, and Brazil, where they are currently building factories? Seems like a no brainer to me.