This kept the height of the vehicle lower than a double-decker, at 3.65 metres (12 ft 0 in), but still allowed installation of toilets, kitchens or sleep cabins below the passenger compartment.

[12] The Southern California Rapid Transit District of Los Angeles operated Neoplan USA Skyliners during the 1980s and early 1990s.

Stagecoach bought some right-hand drive Skyliners during the 1980s to facilitate its new coaching division developed during the company's early years.

A shorter-wheelbase N122/2 version measuring 9 m (29 ft 6 in) in length developed specifically for the Japanese market also appeared for smaller and medium-sized bus operators from the mid-1980s.

In March 2003, near Nažidla in South Bohemian Region a Neoplan Skyliner overturned on Czech European route E55, killing nineteen people and one man died two years later due to the injuries sustained in the crash.

[18] A report by French investigators recommended that drivers of double-deck coaches should receive special training because of the vehicle's relative instability.

The German manufacturer added a safety system, known as electronic stability control, which brakes each wheel separately to prevent overturning, in 2006.

[1] From 2019, the Neoplan Skyliner was lengthened to 14 metres (45 ft 11 in), and can seat 83 passengers plus two crew (driver and steward), including space for up to two wheelchairs.

This is able to articulate, during steering movements - and this helps reduce tyre wear,[1] which can afflict dual rear axle vehicles.

[1] It also features a speed-limiting device called 'maximum speed control' (MSC), and is fitted with an accident data recorder (ADR).

[1] Its maximum permissible weight is 26,000 kilograms (57,320 lb), and can have a total luggage volume of up to 7.9 cubic metres (279 cu ft).