text: France's tax policy that favors diesel fuel over gasoline results in higher percent of people using diesel vehicles. Diesels make up 67 percent of vehicles in France, compared to 53.3 percent average of diesel engins in the rest of Western Europe. By cutting back on car usage, the world would save an astronomical amount of resources. If people stopped bying cars, there would be less production of them. Thus conserving the metal, as well as other materials, used to make the cars.