Why? The current Class 166 model is dated from 2009, so not the best for a modern game used in 2020... It requires many freeware mods to make it playable, this may not be accessible to members of the community who are unable to or chose not to install modifications such as reskins, audio patches and physics patches. There is also no proper Class 165 model available for Train Simulator, which makes the player experience underwhelming. What are the Class 165 and Class 166 'Networker Turbo'? The Class 165 and Class 166 'Networker Turbo' were built by British Rail in the early 1990s to replace 'Heritage' DMUs and loco-hauled trains for the Thames and Chiltern routes of the Network SouthEast sector, hence the name 'Networker Turbo'. Each unit is formed of either 2 or 3 coaches. The Class 165s were the first batches built with a later version being built as an 'express' variant known as the Class 166. The units are operated by Great Western Railway on a variety of services from the Thames Valley to regional services in the South West. The Chiltern Railways units operate on services out of London Marylebone and Birmingham Snow Hill/Birmingham Moor Street. A Chiltern Railways Class 165 - image from: https://bit.ly/3hZC10i Let me know what you think below!