I put very minimal calculation which at least puts it around the same order and linked a report by Volvo where they try to count the whole cycle of a car with the emissions of the production and transport of used parts and fuels.

On current electricity mix, an electric car is only slightly better on a CO2 emissions. With only renewables, it can be 2x better.

But the statement that in China it's at least better than a Prius is just wrong. Until renewables take a serious share of the grid, a smaller well engineered hybrid is not worse.