The BMW Group presented a fusion of art and innovation at the Frieze Los Angeles art fair in the form of the BMW i5 Flow NOSTOKANA. The one-of-a-kind vehicle combines colour-change technology developed by BMW with the artistic language of South African artist Esther Mahlangu.
The designer piece, with sections of attached film that can be electronically animated, embodies the latest development in colour-change technology for vehicle surfaces in cooperation with E Ink.
The contemporary tribute recalls the BMW Art Car designed by Mahlangu in 1991. “The BMW i5 Flow NOSTOKANA honours the history of the BMW brand and continues the story of our global cultural engagement in a unique way. It combines art and design through progressive technology. Here, technology itself becomes art,” says Adrian van Hooydonk, head of BMW Group Design.
In 1991, Mahlangu designed the 12th BMW Art Car, based on a BMW 525i – becoming the first woman and first African artist to do so. “Her art inspired me years ago, back when the concept of colour change on a car was just an idea in my head,” says Stella Clarke, Research Engineer Open Innovations at the BMW Group. „Now, being able to realise this idea, and work with Esther Mahlangu, is absolutely surreal.” The 88-year-old artist’s signature colours and geometric patterns are perfect for bringing the innovative Flow technology to life in the BMW i5. The versatility of the electrophoretic colour changes makes the fully-electric sedan a dynamic work of art. “It is fascinating to me to see how modern technology can expand my art and make it accessible to a completely new audience,” says Mahlangu.
In the BMW i5 Flow NOSTOKANA, which is named after Mahlangu’s first son, sections of film that can be electronically animated are applied, with two strips each across the roof, bonnet and rear section, as well as the vehicle’s sides. Like an e-book reader, there are several million microcapsules in each E Ink film. The structure and arrangement of the colour particles they contain can be changed by applying an electric voltage. This allows the typical colours and patterns of Mahlangu’s art to be generated in constantly changing compositions.
The animations are also accompanied by an equally extraordinary sound, specially composed by Renzo Vitale, the BMW Group’s Creative Director, Sound, for the BMW i5 Flow NOSTOKANA. To combine the soundscape of the BMW brand with that of the South African Ndebele culture, Vitale used sequences from Mahlangu’s voice, as well as the sound of the feather brushes she used for painting. These were combined with sounds produced by the colour pencils employed in the BMW design studio and the acoustic signal heard as feedback when operating the BMW i5’s touch display. This created a sound mix that starts off softly at the beginning of each colour change and increases in intensity as the animation progresses.
To accurately recreate every detail of the complex ornamentation, the BMW i5 Flow NOSTOKANA has been fitted with 1,349 sections of film, each of which can be individually controlled. The laser cutting process used to trim the film and the electronic control design were developed in partnership with E Ink. The adaptation of the technology for curved surfaces, as well as the programmed animations, are all BMW Group in-house developments.
Overall, colour-change technology is developing rapidly. The BMW iX Flow featuring E Ink presented in 2022 had the ability to switch from white to black at the push of a button. This was followed just one year later by the first multi-coloured implementation. The 240 sections of film applied to BMW i Vision Dee were able to display up to 32 colours. This latest phase of development now enables even more colours and patterns. At the same time, the sections of the film are more robust – which could make potential future series production easier. However, for the time being, the BMW i5 Flow NOSTOKANA will remain one of a kind.
