Ranking every Diesel Multiple Unit in Britain: Part 1

Britain is home to 22 classes of DMU that are currently in mainline passenger service. In this pair of videos I'll be reviewing all of them (except for the 196 as they entered service last week, I'll be making a video on them in due course anyway). In Part 1, I'll look at the 10 worst, which will be nice and miserable, you seem to like that.
Discord: / discord
Photography:
Public Transport UK
Arriva Traincare
Railphotographyuk, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
The Basingstoker, CC BY-SA 2.0 creativecommon..., via Wikimedia Commons
Alex Noble, CC0, via Wikimedia Commons
User:Metrophil, CC BY-SA 3.0 creativecommon..., via Wikimedia Commons
Superalbs, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Hugh Llewelyn, CC BY-SA 2.0 creativecommon..., via Wikimedia Commons
Kat's Transport Photography, CC BY 2.0 creativecommon..., via Wikimedia Commons
OpenStreetMap contributors, CC BY 3.0 creativecommon..., via Wikimedia Commons
davwheat, CC BY-SA 2.0 creativecommon..., via Wikimedia Commons
Alex Nevin-Tylee (AL6NT), CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Class 153 cab, Chris McKenna, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Transport for Wales
Peter Skuce, Public domain, via Wikimedia Commons
PeterSkuce, CC BY-SA 4.0 creativecommon..., via Wikimedia Commons
Music:
The Monuments and Tunnels in Goa and Hampi - Bail Bonds