My introduction to scale Lego trains at approx 1:48th scale.
 
Instructions are on CD and include PDF instructions, PDF parts lists, and XML files.
 
LENGTH:  15.5"  (49.2 studs)
WIDTH:  3.1"   (10 studs*  Based on 8 wide plus railings, clips, etc)
Rides on standard Lego track.
Plug doors can be displayed closed or in the open position, revealing a hollow interior.
 
Colors Included:  Blue, Red, Dark Red, Yellow, and Green.  Each requires approximately 1,000 Lego pieces, as well as a magnetic coupler pack with magnets (after-market recommended).  Substitution of bearings is optional for best performance, but not required.
 
If you desire/require the instructions on a USB thumbdrive, please include that $4.00 additional item in your order.