"You just felt like it" is a fine choice. But that's not their advertising push. Their push is that it'll help the environment and save you money, if those claims are invalid then the reasons they give to buy their cars are lies. If the focus of the advertising was the geewhiz factor (like the Mazda inverted piston thing... whatever happened to that car anyway) all this other stuff would be a non-issue, but they made other claims, claims which (inspite of the headline) are proving a little sketchy.
Their fuel tank/ fuel management system is horrible. Only in another reality can you go 600 miles between fillups.
And having 2 gallons still in the tank when it automatically shuts down is not only incompetent; it's inexcusable, in the 21st century.