A prominent Muslim scholar in Saudi Arabia has warned that those using alcohol-based biofuels in their cars could be committing a sin.

What, my car is going to get drunk? Hey, I'm against ethanol because it doesn't work, sure, you can run a car on it, but you're pumping a gallon of gas into the tractor to make the gallon of gas out of the corn. That doesn't make a lot of sense. But this? This is heading into "My imaginary friend can beat up your imaginary friend" territory.

Saudi Muslim cleric warns that biofuels could be sinful | csmonitor.com