I have not seen in mentioned but may have missed it, I would add Hornby’s class 110 DMU.
I am not sure when it first came out but apart from the orangey warning yellow that Hornby always used, detail (particularly the passenger windows) are really good and fairly flush.
Yes the wheels are chunky and the motor sounds like a spanner in a cement mixer compared to a Bachmann DMU, but in my view it stands up well and still looks good. Also it’s really versatile for converting to other classes.
Stephen