R003 is a Stepford Connect route that runs from Stepford Central to Leighton City. This route runs for 11.35 miles (18.27 kilometres) and takes approximately 23 minutes to complete.
This route is featured on the in-game advertisements, with a legacy Class 720 and the text "Stepford to Leighton in under 30 minutes, choose Connect." This route also shared this trait with R024 and R026 added in V1.4. However, the Stepford Express route, R076 (Stepford Central <> Leighton City via Benton), beats this route, at 11 minutes.
In V1.6, this route no longer terminated on Platform 1 at Leighton Stepford Road, and instead terminated on Platform 2, or Platform 3 if Platform 2 is already occupied. This is likely because of the addition of R037 and R038 in that update, so players can continue their journey to Llyn-by-the-Sea or Westwyvern if they wish.
This route is one of the few routes that require experience to unlock.