I know that the Yellow boxes came first then they switched to the Red and Blue boxes. I'm not sure of the years which they were released but I'm pretty confident that the Yellow boxes were only released in the UK, and then they switched to the Blue and Red boxes when they decided to release them worldwide.
I'm not sure what Carousell is either. When I look for photos of these trains on google images the pictures I get are usually from Carousell.
Edit: I just looked at the wikia and it says the Tomica World trains were first released in 1997 and were discontinued in 2003 when the changed the name from Tomica World to Motor Road and Rail and chose to directly focus on Thomas and Friends. It doesn't help us find out when they were first released in the US, or, I could be wrong and they were all initially released worldwide in 1997.
(This post was last modified: 07-25-2020, 12:32 PM by Super.)
I'm not sure what Carousell is either. When I look for photos of these trains on google images the pictures I get are usually from Carousell.
Edit: I just looked at the wikia and it says the Tomica World trains were first released in 1997 and were discontinued in 2003 when the changed the name from Tomica World to Motor Road and Rail and chose to directly focus on Thomas and Friends. It doesn't help us find out when they were first released in the US, or, I could be wrong and they were all initially released worldwide in 1997.