Is this Something New from Tomy?

It's a 70th Anniversary promotion. You just need to buy ¥2000 (inc. tax) or more in one transaction of the eligible products at participating stores and you will get that 70th Anniversary Hamburger car. Regarding why it's a hamburger… I have no idea.

-plarnold

wow glad I got mine for less look at this from U.S. eBay:

http://www.ebay.com/itm/Tomy-Plarail-Tho...2516.l5255