An overview of some of the concept vehicles unveiled by Opel at the Geneva Motor Show over the years.

Created by Toyota's European styling centre ED2, Hybrid X is a four-door, four-seat open-space concept that proposes a new design language for hybrid models and acts as a technological showcase.

Official promotional video of the Mazda Hakaze Concept Car, unveiled at the 2007 Geneva Motor Show.

Unveiled by SEAT at the Geneva Motor Show, the Altea Freetrack Prototype gives a preview of the design and technical features of the next Altea Freetrack production model.

Additional information on the design development of the Opel GTC Concept, including sketches and pictures from the prototype construction process.

Developed by Citroën in partnership with Espera Sbarro Design School, the Cruise Crosser is an all-terrain concept vehicle with six wheels on three axles and a hybrid powertrain.

Edited Dodge Demon Design Insight Video. Contains footage of the Dodge Demon Concept as well as soundbites form Jae Chung - Primary Exterior Designer Dodge Demon concept and Dan Zimmermann - Primary Interior Designer.

Unveiled by Opel at the Geneva Motor Show, the four seat GTC Concept coupé gives an insight into the brand's design language for the future.

EDAG has released the first images of its LUV Concept, a luxury-class SUV with a modular layout and a maritime look that uses oiled teakwood for several exterior and interior details.

Official promotional video of the C-Metisse concept, unveiled by Citroen at the 2006 Paris Motor Show and awarded with the 2006 Louis Vuitton Classic Concept Award.