I was never satisfied with the Lego Ideas (then CUUSOO) set 21103, so I did my own version. I was insipired by a similar moc found somwhere years ago, but I made some modifications.

I'll add the minifigures later :)

1985 version:

2015 version:

1885 version: unlike the CUUSOO set, this one can fit regular tracks ;)

And, of course, this model is in Speed Champions scale...

A few modifies:

Do you prefer this one or the first version?

 

That’s awesome, the back section looks much better in this new version!  Is there space for any figs inside?  

There's space for one minifig

Love it!