>>7462845Nah those are regular lego tracks, just spruced up with plates and tiles. Almost everybody sticks to using the normal lego track/wheel gauge unless they're building narrow gauge stuff (Where they use a 4-wide wheel base instead of a 6-wide one to fit on those tracks used in that old Indiana Jones mine set) or building large scale. (Larger than minifig scale).
A lot of builders work in Lego's "official" 6-wide scale for trains but the people who're more autistic about scale and stuff like that tend to build in 7-8 wide, sometimes even 10-wide. Pic related is a 7-wide locomotive I put together based on a failed Ideas project.