Callum reveals SMS interior design study concept

Using a retromod Porsche 911 interior as the basis for the research, the team led by Charlotte Jones and Ian Callum identified coffee pulp, eggshells, red lentils, walnuts and rice as viable materials for a car interior in 2030.

Callum SMS Interior Design Concept

The goal of the team was to identify fresh sustainable options that Callum’s customers could benefit from in the future.

From the official Press Release:

Food waste

With thousands of tonnes of food wasted every day in the UK alone, CALLUM consulted with green-tech company Ottan to determine the most appropriate materials capable of replacing plastics yet still meeting the rigorous design, environmental and engineering requirements of a car.

Solutions identified that could meet the temperature and wear specifications included adopting eggshells mixed with resin to create a smooth, opaque material with either a glossy or matt surface. Application examples include the trim surround for the window switches.

Callum SMS Interior Design Concept Eggshell

By adding walnut shells to the eggshells, the recycled content of Ottan’s material increases to 84 per cent from 78 per cent.

Out of date rice or lentils can be turned into a smooth translucent material, ideal for illuminated areas of the car such as lamp covers or illuminated switches. As a flame-resistant alternative, coffee pulp could replace traditional plastics for glossy, decorative trim such as dashboard inserts.

Keen to demonstrate that sustainable materials can still offer vivid colours, CALLUM identified purple carrot pulp that produces a mulberry-like colour for trim parts. Tree leaves can be recycled into a dark, smooth surface offering an alternative natural finish to wood veneers for the centre console or dashboard.

Clothing waste

With seats requiring a blend of wear resistance, comfort and colour fastness, CALLUM opted for preloved materials that would usually go to landfill.

“Around the world, we consume roughly 62 million tonnes of textiles a year and around 87 per cent of the total fibre input used for clothing is either landfilled or incinerated,” says CALLUM’s head of materials and sustainability, Charlotte Jones.

Callum SMS Interior Design Concept Planq

“Companies such as Planq take jeans, then shred and press them with potato or corn starch to create a hard veneer that could be used for seat shells or dash centres.

The SMS design study was created by CALLUM to illustrate that there is another way, and we can support manufacturers and suppliers identify engineered alternatives that end consumers are increasingly looking for.”

Plastic waste

The seat centre facings in the CALLUM design study use Camira, a fabric made from marine plastic waste such as polyester, whilst the bolster surfaces are covered in Féline, a soft material produced from PET bottles.

Callum SMS Interior Design Concept Feline FeltEach offers no weight penalty, another factor considered for the restomod upon which the study is based, and crucially each can be recycled again if needed.

For the carpet, Jones proposes Econyl, a material that uses nylon carpets or fishing nets to create a new hard-wearing fabric.

Callum SMS Interior Design Concept Econyl

Whilst SMS is a concept, CALLUM selected materials that have the meet or have the potential to meet automotive requirements and be production feasible by 2030 – the next step is to trial the materials in upcoming projects. Demonstrating the relevance of its sustainability studies, CALLUM has already engineered a hemp/flax composite option that buyers can now select on its latest project, the Barq EV scooter.

Callum SMS Interior Design Concept Flax Composite

“More of our customers are starting to think about sustainable projects and put an emphasis on the circular economy. With others, we might nudge them down that path, highlighting the business benefits of making a more sustainable choice,” added CALLUM co-founder and design director, Ian Callum.

About CALLUM

CALLUM is a design and engineering business creating bespoke and limited-edition products.

CALLUM is focused on design, lifestyle and travel, taking on projects that intrigue, excite and tell a story. It is a collaboration of talented individuals with experience across art, audio, automotive, fashion and motorsport brands.

Nimble and agile, CALLUM produces exquisite design supported by quality execution, with its 20,000ft2 Warwick facility housing the latest technology to deliver design, prototyping, machining and trim services.

Amongst its founding members is British designer Ian Callum CBE, admired for his prolific automotive work, which includes the Aston Martin Vanquish, Vantage and DB9, Jaguar F-Type, F-PACE, XJ and the World Car of the Year Award-winning I-PACE, amongst others.

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