Conventional wisdom says that the sticker indicates a production date of April 2001, and the only red DD51 with yellow wheels came in the 2001 First Try Set.
https://blueplastictracks.com/showthread...8#pid59718
Have a look at this video at 3:59, and you'll see the same chassis markings as yours:
https://www.youtube.com/watch?v=xpCs8DevhO0
https://blueplastictracks.com/showthread...8#pid59718
Have a look at this video at 3:59, and you'll see the same chassis markings as yours:
https://www.youtube.com/watch?v=xpCs8DevhO0
![[-]](https://www.blueplastictracks.org/images/collapse.png)