The Alexander Dennis Enviro400 was CMNL's third UK based double deck model, introduced in late 2006 it can be produced in two lenghts 10.1 & 10.8m, further options allow for both single & dual door layouts. A third variation was produced in 2009 that has flat rear body panels either side of the engine compartment, with the aid of tampo printing this allows a reproduction of the Volvo B9TL version of the bus.

A large number of releases of this model continued until 2013, following the demise of Creative Master during 2012, only four further releases have been issued by the Northcord Model Company, all in 2013.
A new updated version of the model was introduced to the range as the ADL Enviro400 MMC by NMCL in late 2018 and these have been issued in their own UKBUS6500 series.

In August 2022 Northcord Models announced that they would be relaunching the Enviro400 casting and that the Northcord versions would be issued in a new UKBUS6200 series. The first pair of models were released in the UK in November 2023 and during 2024 a further variant was tooled to reproduce the later style headlight design.