Kia has unveiled the Ray concept at the Chicago Auto Show. Designed to showcase the Korean automaker's environmentally efficient initiatives, the plug-in hybrid concept – said to be 'a bold new collaboration between design and engineering' – has been built using lightweight and recycled materials.

Based on the Kia Forte platform, the Ray features clean, flush surfaces devoid of unnecessary edges giving the four-seat sedan a flowing profile with a pronounced rear shoulder leading to a high deck for reduced drag. A one-piece integrated underbody panel, custom-designed narrow tires and flush wheel design also enhance its aerodynamic attributes. Measuring 4400mm in length, the Ray is 1850mm wide and 1360mm tall and has a 2700mm-long wheelbase.

Inside, a hexagon/honeycomb shape has been used throughout the cabin to reduce overall weight. The seat frames – mounted on the sills to create a floating effect – are made of composites and feature breathable elastomeric materials, while sustainable trim materials combine with a touch screen instrument layout. Hexagonal solar cells embedded in the glass roof panel power the lighting and climate control systems.