About The Argyle Line is a suburban railway located in West Central Scotland. The line serves the commercial and shopping districts of Glasgow's central area, and connects towns from West Dunbartonshire to South Lanarkshire. Named for Glasgow's Argyle Street, the line uses the earlier cut-and-cover tunnel running beneath that thoroughfare. It has 48 stations. Rollingstock Class 303 (retired) Class 311 (retired) Class 314 (retired) Class 318 Class 320 Class 334 Class 380 (2014 - 2019) Class 385
We already have the 314, 380 and 385, so there's a bonus. Could have the 334 as a DLC. Would be a bit of mix of eras, but probably the best way to have the route, new rolling stock, and taking advantage of existing stock all in one.