This is a modern standard design RhB passenger car, 1st/2nd class, in the original paint scheme from the Seventies. It is new tooling as a type AB car. It has changes to the body tooling. It has car number AB 1543. The car is equipped with interior lighting, metal wheel sets, and doors that can be opened. Length over the buffers approximately 62 cm / 24-3/8".
The 31678 car is a good add-on for the 31676, 31677 car or the earlier 3167 and 31675 cars to make a prototypical train.