I think you will find the same about diesels that the Americans...

I think you will find the same about diesels that the Americans did. By the time you add on the cost of the emissions equipment, the 15% fuel economy hit from the emissions requirements, the need to deal with DEF and the massive risk of engine and aftertreatment damage it brings - Diesel no longer makes sense for anything but long distance heavy towing.

Note that 50 ml of Diesel Exhaust Fluid mistakenly added to the diesel fuel tank will 100% destroy the engine's high pressure fuel system, and 250 ml of diesel fuel in the DEF system will do the same thing to it. Brilliant engineering for sure. So never-ever loan a Euro 6 diesel vehicle to anyone, and pause everytime to make sure your head is on straight before adding any fluid to it.