Citroen C3 Red Block at Geneva Auto Show

The French automaker did not reveal a lot of information on the concepts, but said that the C3 Red Block and C6 Noir et Blanc offer "new and expressive approaches to colors and materials." Meanwhile, the DS4 Purple "reinterprets and takes inspiration from the techniques of jewelry craft."

The C3 Red Block concept features a matte-gray paint scheme with red accents on the wheels and windows. Otherwise, it's unchanged from the C3 production car.