What biofuels could be used in vehicles?

Biofuels that can be used in vehicles include biodiesel, which is derived from vegetable oils or animal fats and can be used in diesel engines, and ethanol, produced from fermenting sugars in crops like corn or sugarcane, suitable for gasoline engines. Other options include biobutanol, which can serve as a drop-in replacement for gasoline, and renewable diesel, made through processes like hydrotreating, offering similar properties to petroleum diesel. These biofuels can help reduce greenhouse gas emissions and reliance on fossil fuels.