Auto Questions?

I have many questions for the auto industry. Some of them include: Why are concept cars never shown outside the auto show? Another one is: What is the point of a concept car? and How many man hours does it take to produce one average size sedan for any manufacturer? and Is the time to build a sedan for all auto manufacturers? Those are just a few and if you have any other questions feel free to get a hold of me and let me know what they are. I would be happy to do some digging around to find the answer if I can. My email is: McKenrick9@comcast.net send your questions here.