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Methanol is twice so expencive as gasoline. Once methanon was distilled from French wine.
I'd be surprised. Methanol is a toxin that causes blindness by damaging the optic nerves and even a fairly small amount can be fatal. If there were enough in wine to be worth distilling there'd be an awful lot of people blind or dying as a result of drinking relatively small amounts of wine. I'd guess the actual amount of methanol in a bottle of wine is less than 0.1%, red wine having more than white. There are easier ways to make methanol that have been known for hundreds of years.
Ethanol on the other hand has been distilled from French wine for hundreds of years and still is, because that's how products such as Cognac and Armagnac are made. If you want pure ethanol though, you can't get it by direct distillation because of a physical property of ethanol (it's an azeotrope). By coincidence it was in the news only a few weeks back that the French government are buying up French wine in order to produce ethanol as a way of supporting their wine-makers who are struggling due to reduced sales.
In the UK it's commonly said that home-distilling wine or beer to make spirits is dangerous because the end product can make you go blind and some (allegedly more knowledgeable) people attribute that to increasing the concentration of methanol. This is largely a load of rubbish. It's really not that hard to get right. The far bigger risk from home distillation is probably burning yourself and your house to the ground.
I've also heard stories (I've no idea whether they're true) that there was an increase in the number of people going blind during Prohibition in the US where it's attributed to "moonshiners" increasing the alcohol content of their product by adding industrial methanol. I'm unconvinced, but it's perhaps not impossible.
James