The three siblings debuted at the 2005 Geneva Motor Show and were manufactured at the facilities of the TPCA joint venture (Toyota Peugeot Citroën Automobile) in the city of Kolín, Czech Republic.

890 kg (1,960 lb) (2012 1.4 HDi 5-door) The C1's body was designed by Donato Coco in a one-box configuration.

[9] In Portugal and Greece, a commercial van version called the Entreprise is offered, equipped with the 1.4L diesel engine and available only in the three-door body, for urban use.

The updated C1 features a revised front bumper and grille, in keeping with Citroën's family look.

More durable seat fabrics were used and ventilation control graphics were updated for better legibility, and all models received new wheel trims.

[15] Breakdown statistics reported by the German Automobile Club in May 2010 placed the Citroën C1 (which the data grouped with the Peugeot 107 and Toyota Aygo) at the top of the sub small car class, in respect of the low breakdown rates achieved for cars aged between one and four years.

A fixed-profile cabriolet model named Airscape was introduced with a folding canvas roof, available in both 3 and 5-door configurations.