These models were announced as part of the Spring 2021 range, from earlier this year. Complete with all new tooling.
Both models have features specific to the locomotives, full details for this and the sound function list can be found on the links below:
Two versions received, BR Blue & BR Green, order for £237.95 - RRP £279.95:
CLASS 20/0 DISC HEADCODE D8015 BR GREEN (LATE CREST)(DCC SOUND)
CLASS 20/0 DISC HEADCODE 20057 BR BLUE (DCC SOUND)