Consumer Reports is targeted at people in the US too.
Taxes in other countries means that cars get different engine, so for example in the past we used to get Audi with the power tweaked down in Belgium.
Also Tesla is a lot more practical in Belgium (small dense country) than in Spain (where energy is expensive, there is no supercharger and your regular electricity contract is 15A (220V), so not enough to charge a Tesla properly in the average dwelling)
There are so many factors, it is better for consumer magazine to focus on a single country.
