|Suzuki is heavily favoured one way...|
Mainstream cars: Suzuki is a popular brand in Greece but hardly exists in Portugal. Hyundai also finds many more buyers in the smaller market. Even the Japanese big guns Toyota and Nissan are more sought after (Nissan by ratio). Does that mean that Asian brands are the better selling brands in Greece? Overall yes. However, taking a look at the green side of the chart shows Honda, Mitsubishi and Mazda. So yes they are stronger in Greece but not totally. The three French brands are all favoured by Portugal while Mazda might as well forget about the Greek market.
Premium marques: This shows the more expensive cars are bought in Portugal. Greece obviously has economic issues as Portugal isn't a luxury brand hotbed yet it heavily outperforms Greece here.