You people are the worst, honestly. Car launch dates are a useful piece of information, period, and should be included in the article. Nothing else matters other than that. Ask yourself: are there people out there who might want that information? If the answer is "yes," it belongs in the article. Wikipedia is going downhill fast. All you people do these days is create arbitrary standards of what is and isn't "notable" when in reality you should just include everything, because it's a fucking website and not a physical book.