Fluoride (and the related derivatives) are naturally
occurring minerals, and can be found in unpolluted natural water sources. The countries that add extra Fluoride to their water sources are generally only increasing the level already there.
A short history of cars: 1769 the first steam powered auto-mobile by Nicolas-Joseph Cugnot; 1807 first car powered by an internal combustion engine fueled using hydrogen designed by François Isaac de Rivaz; 1828 first small model car powered electric motor by Ányos Jedlik; 1835 a car powered by non-rechargeable primary cells by Sibrandus Stratingh; 1886 the first petrol/gasoline powered car by Karl Benz. As you can see there were cars before the petrol/gasoline powered internal combustion.
The 'West' is not actually a thing, the countries that are generally thought to belong to this made up group actually have different histories, cultures, politics and social opinions, some of these over lap between the countries and some don't. A simple example is in Australia all eligible adult (18+) citizens must register and vote in political elections and are fined if they don't, whereas in the US it is not compulsory.