371-508A Class 101 2-Car 'Power Twin' DMU BR Green (Speed Whiskers)Expected Delivery Jul Aug 2026 (Subject to Change at Manufacturer's Discretion). The Class 101 Diesel Multiple Units were the most numerous of all the first generation DMUs and had a long service life, remaining in use for almost half a century, and were delighted to present N Scale models of this iconic unit as part of the Graham Farish range. This two car unit depicts a Power Twin comprising two vehicles equipped with an engine and the associated