solarpunk memes

Serious question: What about Alcohol cars?

I get it that there would be a need to develop better motors to run on alcohol alone and that alcohol's output is lower than gasoline but at least the first part is solvable in the same way that diesel motors got better over time (spending money on R&D).

I ask this because, here in Brazil, Lula tried to implement pure alcohol cars back in his first or second term but faced some backlash both because we didn't had the necessary tech to make good alcohol motors and from a lot of other reasons (one which is probably to be petrol companies fucking the project to keep their gains, which although sounds conspirational, may also be true since it is patently obvious that petrol companies lobbyed against climate change measures).

Also, as long as we don't fuck up the soil by mismanagement, it will be almost carbon neutral in emission since all CO2 output was used to grow plants, which is different from using petrol that needs millions of years to be put back under a rock deep down the soil.

I'd even risk to say that it could even be a net-positive(?) carbon capture since the fiber from sugar cane (for brasil's case) is captured carbon that could be used to fertilize the soil back again.

But I don't think we will see a resurgence of alcohol based cars because, as it seems, it failed here on Brazil and oil companies' greed definitivelly aren't the only reason for that (though I believe it played a smal to medium role)