Yea they are nice to see and I was impressed when I saw them. I'm not entirely sure but it seems to be a Volvo 7500 which got a Volvo 8900 facelift. You also have a double artic version of the 8900 as well, the Volvo B9S. But this one seems to be a Volvo 7500 (https://busphoto.eu/vehicle/458089/#n677142).