Designed to battle the Fiat 500, the Citroen DS1 will reportedly have unique styling and three-cylinder engine lineup.

Citroen's DS lineup has been expanding at a fairly predictable rate, so it comes as little surprise the company is reportedly developing a new DS1.

Designed to battle the Fiat 500, the entry-level model will reportedly be based on the next-generation C1 and measure approximately 3.6 meters (11.8 feet) long. Styling remains a mystery, but the car is expected to have a unique grille, distinctive B-pillars and a high-quality interior with a digital instrument cluster.

Power will likely be provided by a variety of three-cylinder engines sourced from BMW. The petrols are expected to have outputs of 68-100 PS (50-74 kW / 67-99 PS), while the diesel will reportedly develop 70 PS (51 kW / 69 PS). There's also word of a GTi variant with 130 PS (96 kW / 128 hp).

A DS1 concept could be introduced at the Geneva Motor Show, before the production model goes on sale in 2013.

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