The Opel Siderium was the winner in the Best Conceptual Interior category at the Interior Motives Design Awards 2008. It was designed by Vinicius Barbosa Crepaldi and Tiago Aiello Tomé De Souza from UNESP – the Universidad Estadual Paulista, Brazil.

Opel Siderium Concept has its eyes fixed on luxury interiors that may be available in the future, and it does a commendable job in that department. The exterior is full of textures and accessories and is marked by soft curves, pleasing to the eye, and a perfect introduction to what lies in the interior.