LEGO Ideas - The 'Narrow Gauge Train Set' project was made by someone who didn't just see we produced slimmer train track elements; they saw an opportunity. https://ideas.lego.com/projects/72853 | Facebook
Motorised LEGO Narrow Gauge Trains - YouTube
LEGO MOC Narrow Gauge Train - Borkumer Kleinbahn by asper | Rebrickable - Build with LEGO