Darn you guys....I am not into the Enodens that much but I do have the Tomy Dream Energy Green one with all the stickers (2002) and the PostPet Pink one. Now because of you two I now want the one that comes with that Little Excursion Set (2010?) which has an old tyme, street car, look to it. Do you know if it was released by itself in addition to the set? Looking in my super duper 60th Anniversary Book that Enoden looks like the trail car may have sound but the one pictured in the set above does not show traction tires in the rear. Could there be 2 of them released? One without sound included in the set and one sold separately with sound? There are a lot of Enodens in the 60th Anniversary Book including a neat blue/cream/dk gray one.
That road & track piece with the female connectors was originally released in sets that only had these straight and curved road track and the reason they have both female connectors is they are made to be connected with the road side and center clips like in this photo. I have noticed though that Plarail have included single straight piece like the one you show in different sets which was always a mystery to me because of the two female ends. I don't really know the exact reason but this is all I could come up with when I asked myself the same question years ago when first seeing a single straight included in a set.
That road & track piece with the female connectors was originally released in sets that only had these straight and curved road track and the reason they have both female connectors is they are made to be connected with the road side and center clips like in this photo. I have noticed though that Plarail have included single straight piece like the one you show in different sets which was always a mystery to me because of the two female ends. I don't really know the exact reason but this is all I could come up with when I asked myself the same question years ago when first seeing a single straight included in a set.