More Help with "What is This"?

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Many thanks Plarnold, that explains a lot. This was a real train that ran on 99 D sized batteries for 5.5 miles, wow, wonder if that was a single car or more and if it was loaded with passengers. The Japanese sure have great advertising events. Much more imaginable to get people to experience products than to simply have a TV or Internet advertising campaigns. only 5000 of them...and they are flooding the auction sites now so hopefully the prices will drop significantly.