[simopaa]

I read in a local science magazine that (paraphrasing) no matter if all the cars were electric - as long as people keep flying, the amount of benzine produced would stay roughly the same, since making kerosene for the planes requires such huge amounts of raw oil. Benzine and other oil-based fuels were said to pretty much just a side product of kerosene production

[projektfu]

Not sure, because refineries can crack larger hydrocarbons (kerosene) into smaller ones (gasoline/benzine) based on demand.