I was able to get some more McDonald Plarail trains on ebay. Based on the marking on the chassis, they were made sometime betwen 2012 -2014. There are so many variations even with one model. It appears Dr. Yellow is the most popular one among the them. I believe there are at least 3 different variations of Dr. Yellow. In case anybody wants to know the differences between a regular Plarail and a McDonald Plarail see photos below.
![[Image: 4-a.jpg]](https://i.postimg.cc/14nHFWth/4-a.jpg)
McDonald's version is a bit shorter. Maybe a bit higher. I don't think it will have problems clearing tomy tunnels
![[Image: 3-a.jpg]](https://i.postimg.cc/5jSwLZVr/3-a.jpg)
I am stump with this one.
![[Image: 2-c.jpg]](https://i.postimg.cc/XZ55JPLQ/2-c.jpg)
What is the purpose of the gear at the bottom?
And this one.
![[Image: c31.jpg]](https://i.postimg.cc/RJSJgZBD/c31.jpg)
![[Image: c32.jpg]](https://i.postimg.cc/QVmTH1gG/c32.jpg)
It can't be pull back motor as there are some already that features pull back motor and they don't like this .
If you are still interested in checking out more McDonald Plarail engines, I upload my entire collection.
https://www.flickr.com/photos/183311600@...0575822676
There is at least one more engine out there.
![[Image: 4-a.jpg]](https://i.postimg.cc/14nHFWth/4-a.jpg)
McDonald's version is a bit shorter. Maybe a bit higher. I don't think it will have problems clearing tomy tunnels
![[Image: 3-a.jpg]](https://i.postimg.cc/5jSwLZVr/3-a.jpg)
I am stump with this one.
![[Image: 2-c.jpg]](https://i.postimg.cc/XZ55JPLQ/2-c.jpg)
What is the purpose of the gear at the bottom?
And this one.
![[Image: c31.jpg]](https://i.postimg.cc/RJSJgZBD/c31.jpg)
![[Image: c32.jpg]](https://i.postimg.cc/QVmTH1gG/c32.jpg)
It can't be pull back motor as there are some already that features pull back motor and they don't like this .
If you are still interested in checking out more McDonald Plarail engines, I upload my entire collection.
https://www.flickr.com/photos/183311600@...0575822676
There is at least one more engine out there.
My Trackmaster/Tomy/Plarail Photo Gallery Page (over 600+ photos and still under construction)
https://www.flickr.com/photos/183311600@N03/
https://www.flickr.com/photos/183311600@N03/