Regarding pricing in different countries, it also depends on the image branding the manufacturer has adopted for a particular country. In the US, Mercedes cars are marketed as high-end, exclusive autos. Meanwhile in Europe, while you still see the fancy models, you'll also see the brand used as taxi cabs.
It is not unusual for a manufacturer to adopt different approaches for different countries with a more common mass market line in one region (often their home market) and a more upscale only approach in other markets where they may not want to scuffle with the hoi polloi competitors.
It is not unusual for a manufacturer to adopt different approaches for different countries with a more common mass market line in one region (often their home market) and a more upscale only approach in other markets where they may not want to scuffle with the hoi polloi competitors.