The Citroën C1 is a city car marketed by Citroën from June 2005 to January 2022, originally developed as part of the B-Zero project by PSA Peugeot Citroën in a joint venture with Toyota, with two generations produced. The C1 was developed along with two badge engineered variants, the Peugeot 107, which is mostly identical to the C1 aside from its front bumper fascia and front and rear lights, and the Toyota Aygo, which is slightly more differentiated. 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. First generation (PM/PN; 2005) The C1 is powered by a 1.0 L three cylinder engine, which has a fuel economy of 61.4 mpg (UK gallons EU method; 4.6 L/100 km EU method; ca 43.4 mpg US with US method) or a 1.4 L four cylinder diesel engine which has a fuel economy of 68.9 mpg (UK gallons EU method; 4.1 L/100 km EU method; ca 48.8 mpg US with US method). The body was designed by Donato Coco in a one-box configuration. On both the five door C1 and 107, though not the Aygo, the rear tail light cluster extends from the edge of the rear doors to the rear window, without a distinctly expressed "C-pillar". According to the German magazine Der Spiegel, the C1 is the production car with the second-best fuel economy both among petrol engines (after the Toyota Prius) and among diesel engines (after the Smart Fortwo mhd). In January 2010, PSA Peugeot Citroën announced that it was recalling around 100,000 of the C1 and Peugeot 107, following the worldwide recall by Toyota for a sticking accelerator pedal – which the Aygo is affected by. Under certain circumstances, the pedal can stick in a partially depressed position, or return slowly to the off position. Trim range (United Kingdom) Vibe, available in three-door or five-door, this was the basic model and the cheapest. Did not come with central locking, a rev counter, air conditioning or electric windows. Only available with the 1.0i engine. Rhythm, available in three-door or five-door, this trim added remote central locking, body-coloured wing mirrors, two side airbags and an engine rev counter. The 1.4 HDi diesel and the 1.0i petrol engines were both available with this trim. Code, available in three-door or five-door, added