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Enviro400

The Enviro400 is Britain's favourite double deck bus and is available with SmartPack efficient diesel technology.

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overview
Designed by the industry, for the industry

The Enviro400 has been meticulously thought-out and built as part of a unique partnership involving ADL’s world-leading design and engineering teams, customers from all walks of the industry and suppliers with unique, specialist skills. This visionary, collective approach has resulted in a class-leading bus designed by the industry, for the industry, introducing a wealth of benefits for operators, drivers and passengers.

It is accredited as a Low Emission Bus by the Low Carbon Vehicle Partnership (LowCVP) when fitted with the award-winning SmartPack efficient diesel technology, developed in-house by Alexander Dennis. 

SmartPack combines engine stop/start and electrically-driven cooling fans with the smart management of alternator and air compressor to only charge during vehicle deceleration when they place no additional load on the engine. This results in a reduction in well-to-wheel greenhouse gas emissions and fuel consumption of 18% in the LowCVP test cycle.

specification snapshot

Designed to meet your needs

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    Wide range of specification options
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    SmartPack efficient diesel technology


  • Reduced emissions
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options & customisations
Innovation for Safety & Style

To suit operating requirements, the Enviro400 is available in lengths of 10.3m/10.5m, 10.9m and 11.5m and built to heights of 4.2m or 4.3m, with one or two passenger doors.

The Enviro400 is available with a wide range of specification options including the eye-catching City style body with its glazed staircase. Its interior is tailored to deliver a bespoke journey experience with a choice of passenger-centric features such as skylights, social seating, mood lighting or device charging options.