Methanol is not an alternative. Ethanol is. zmethanol has been added to fuel to increase performance for decades. Grand Prix cars run on 100% pure methanol (no gasoline). Methanol as an additive increases performance and octane levels and is cheaper than gas whereas ethanol is 1.5 to 2.5x more expensive and decreases performance and octane levels.
The reason you can't put pure methanol in your tank is because it is so good at combustion it will burn out your motor. The reason you can't use pure ethanol is it won't combust strong enough and it will gunk up your engine.