The Oshan COS1° debuted on the 2018 Beijing Auto Show and was launched on the Chinese auto market right after with prices ranging from 93,800 yuan to 145,800 yuan.

Oshan was known for producing compact MPVs and crossovers, with the COS1° being the first product of the brand.

[2] The lone engine of the Oshan COS1° is a 1.5 liter turbo engine producing 178 horsepower (131kW) and 265 N-m.[3] A facelift was conducted in 2019 at the Shanghai Auto Show for the 2020 model year called the Oshan COS1° Pro and the sporty version called the Oshan COS1° GT.

[4] The engine of the Oshan COS1° GT is a 2.0 liter turbo engine producing 233 horsepower and 360 N-m mated to a 8-speed automatic gearbox which is the same setup as the Changan CS85 Coupe.

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