The British Railways Mark 1 was the first standardised design of railway carriage in the UK. Developed and built by British Railways, this type of carriage was only used by BR during its service life. Whilst most were scrapped, many carriages have been preserved on the numerous heritage railways in the UK, including the West Somerset Railway, which is featured in Train Sim World with this type of carriage. The Tourist Standard Open (TSO) and Brake Standard Open (BSO) variants are included with the West Somerset Railway route.

The Mark 1 BG is included in the Northern Trans-Pennine route along with Mark 2 coaches.

West Somerset Railway
Locomotives BR Class 09 - BR Class 47
Rolling Stock BR Mk1
Locations Minehead - Bishops Lydeard
Operators West Somerset Railway
Tutorials Class 47 Introduction - Class 09 Introduction
Scenarios Preparation Work - To the Beach - Minehead Shunter Part 1 - Minehead Shunter Part 2 - Land Cruise - Finishing Up
DLC BR Class 33
Northern Trans-Pennine
Locomotives BR Class 45 - BR Class 47 - BR Class 101
Rolling Stock BR Mk1 - BR Mk2
Locations Manchester Victoria - Huddersfield - Leeds
Operators British Rail
Tutorials TBA
Scenarios TBA