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Recently, @mercedes_560_sel on Instagram has posted these pictures of a hybrid Citroën Elysée in Jiading District, Shanghai.
The badges I see on the car are 登峰一号 (Dengfeng No. 1) and Step One, so it's possible Dengfeng is the brand and No.1/Step One is the model name.
Pictures:
Product line:
I find this car super fascinating, and would love to see what other information I can find.