Discover ‘Harmony’ with the China Railways HXD1, a new Chinese electric locomotive from Just Trains. Read More : China Railways HXD1 - Out Now! (dovetailgames.com)
So that's an update to the SimtechVision HXD1, included in this DLC: https://store.steampowered.com/app/...hengkun_Railway_Hanyuan__Puxiong_Route_AddOn/
Checking the screenshots, the cab looks much better in the JustTrains version, and JT stock is usually quite good. Also the physics of the SimtechVision HXD1 are pretty poor, had to tweak some stuff there. I don't mind using the "light" version that's included with the route (which I don't play that often).