Words are being exchanged that French auto maker Citroen, will unveil the production version of the DS3 three-door as early as September this year, at the Frankfurt Motor Show. The production DS3 will be inspired by the DS Inside Concept which was showcased at this year’s motor event in Geneva. A number of design elements will be carried over into production, and rumor has it that the vinyl roof option may be offered as well.

According to Autocar, Citroen also revealed that both the DS4 and DS5 models will arrive in 2011, as 2012 models. The DS4 would be a coupe-ish MPV with a crossover touch, that will be based on the C-Sportlounge Concept, first shown in 2005.

The DS5 on the other hand is expected to compete with the BMW X6, but with a cheaper price tag as one of it’s benefits over the German offering. The DS5 will be based on the Hypnos Concept, showcased in Paris last year. It is expected to be powered by, among others, a diesel-hybrid engine. The DS range, including all the above mentioned vehicles will be part of Citroen’s new up market vehicle line up.