Start with what the Oushan Cosmos is: a 5-door minivan with Petrol engine, built from 2018 to 2022, as electrification stopped being an experiment and the crossover took every market. What it meant takes a little longer.
What is underneath
The engine is Petrol engine; other versions carried different engines, listed in the specification table below. On the scales it comes to 1550-1710 kg. Drive goes through a 5-speed Manual transmission / manual / 6-speed Manual transmission / manual / 7-speed Dual-clutch transmission / DCT. The layout matters: the engine drives the front wheels, the packaging choice that gives a small car a big cabin. The wheelbase is 2820 mm. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Its place in the line
The cars a buyer would have weighed it against include the Porsche Taycan, the Tesla Model 3, the Tesla Model Y. Nearby in the Changan Automobile catalogue sit the Avatr 06 and the Avatr 07.