They are and carbon emissions restrictions between Euro 5 and 6 didn’t change for gas cars. Carbon emissions are directly linked to fuel economy, it either comes out as CO or CO2, that study didn’t mention other emissions because it would have shown that more modern SUVs emit less than 10 years old cars because Euro 6 is more strict for the rest. If comparing diesels the difference is even greater.
Heck, with the deterioration of the emission equipment the more modern SUV is probably better for carbon emissions and it’s only on paper that the older vehicle is better.
They are and carbon emissions restrictions between Euro 5 and 6 didn’t change for gas cars. Carbon emissions are directly linked to fuel economy, it either comes out as CO or CO2, that study didn’t mention other emissions because it would have shown that more modern SUVs emit less than 10 years old cars because Euro 6 is more strict for the rest. If comparing diesels the difference is even greater.
Heck, with the deterioration of the emission equipment the more modern SUV is probably better for carbon emissions and it’s only on paper that the older vehicle is better.