Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI/AI images rather than photographs
Prototype Eras
Era 6 (1967 to 1972) British Rail Blue (Pre-TOPS)
Era 8 (1983 to 1994) British Rail Sectorisation
Class 121 Bubble Car BR Blue Grey Highland Stag Diesel Locomotive No.55026
* Class names often change over the lifespan of a locomotive, so this is not necessarily the class name used by the operator in the period modelled.
Supplier links are provided for your convenience and do not guarantee that the product is currently available. RailwayModels.uk is not a representative of these suppliers, but may receive a commission when purchases are made through links on this page.
Dapol
4D-009-008
Class 121 Bubble Car Midline Diesel Locomotive No.55033
Dapol
4D-009-009
Class 121 Bubble Car Railtrack 'Clearing the Way' Diesel Locomotive No.977723
Dapol
4D-009-009D
Class 121 BUBBLE CAR Railtrack Red/White 977723 DCC Fitted
Dapol
4D-009-004
Class 121 Bubble Car W55023 BR Blue Diesel Railcar
Dapol
4D-009-003D
Class 121 Bubble Car W55029 BR Blue/Grey DCC Fitted
Dapol
4D-009-003
Class 121 Bubble Car W55029 BR Blue Grey
Dapol
4D-009-002D
Class 121 Bubble Car W55028 BR Green SYP Dcc Fitted
Dapol
4D-009-002
Class 121 Bubble Car W55028 BR Green SYP
Dapol
4D-009-001D
Class 121 BUBBLE CAR W55020 BR Green Whiskers DCC Fitted
Dapol
4D-009-001
Class 121 BUBBLE CAR W55020 BR Green Whiskers
Dapol
4D-009-HAT04
Class 121 121020 Railtrack Chiltern Railways Blue Exclusive Edition
Dapol
4D-009-HAT05
Class 121 55027 Revised Network Southeast Livery
Dapol
4D-009-HAT03
Class 121 960011 Railtrack Blue & Green Diesel Railcar
Dapol
4D-009-DCC1
Class 121 Chiltern Green SYP 121034 - Exclusive Model
Dapol
4D-009-004D
Class 121 Bubble Car W55023 BR Blue DCC Fitted
Dapol
4D-009-005
Class 121 'Bletchley TMD' Bubble Car Silverlink Diesel Locomotive No.55027
Dapol
4D-009-HAT01
Class 121 BR Chocolate & Cream W55020 Exclusive Edition
Dapol
4D-009-HAT06
Class 121 960010 Railtrack 'Coaching Stock' Maroon Exclusive Edition
Dapol
4D-009-005D
Class 121 single car DMU Bubblecar 121027 Bletchley TMD in Silverlink purple and green - Digital fitted
Dapol
4D-009-006D
Class 121 single car DMU Bubblecar 55026 in BR blue and grey with Highland Rail stag - Digital fitted
Dapol
4D-009-007D
Class 121 single car DMU Bubblecar 55032 in BR blue and grey with Welsh Dragon emblem - Digital fitted
Dapol
4D-009-008D
Class 121 single car DMU Bubblecar 55032 in Midline West Midlands livery - Digital fitted
The Dapol Class 121 “Bubble Car” model replicates diesel locomotive No 55026 in British Rail blue and grey livery. It is supplied in OO gauge (1:76 scale) with a die‑cast chassis, NEM pocket coupling mounts fitted with tension‑lock couplings, and interior lighting. The min‑imum radius required for operation is a radius 2, and the model is DCC‑compatible (DCC 21).
The prototype was a single‑car diesel multiple unit built by the Pressed Steel Company between 1960 and 1961. It carried up to 65 passengers and was used for local passenger services by operators including British Rail, Arriva Trains Wales, Chiltern Railways, Silverlink, Network Rail and Railtrack. The unit remained in service until 2017, with 15 examples surviving. The model represents the British Rail sectorisation period and carries the manufacturer part number 4D‑009‑006.