In Brazil people sometimes use car fuel made from sugar?

That is correct, some cars in Brazil do run on bioethanol or flex fuel produced from sugarcane. Ethanol fuel has been widely produced and used in Brazil since the 1970s and it’s commonly blended with gasoline to create flex fuel (typically a mix of 70% gasoline and 30% ethanol), which can be used safely in most modern-day gasoline-powered vehicles without any modifications. Brazil even exports some of its excess ethanol production. The use of bioethanol, also known as sugarcane ethanol, as a transportation fuel aims to address concerns about national energy security in Brazil, promote renewable energy and potentially reduce environmental greenhouse gas emissions resulting from fossil fuel based gasoline.