I gave up at the bit where the Ineos rep was talking about the safari windows. Saying if you drive into an estate you can see through the safari windows if someone is going to throw a fridge at you. 
View: https://youtu.be/CNngApOKcyY?si=4dCWuTdS2fOhrLrq
Edit. I persevered and it’s pretty interesting about the euro 4 spec diesel info.

Edit. I persevered and it’s pretty interesting about the euro 4 spec diesel info.