Volvo B12
…version of the 12.1-litre engine. In 2010 it was launched in a quad-axle version for the largest double-deckers. The production ended in 2011, with the B11R taking over in 2012 under the names of B380R, B420R and B450R, depending on the power output. TD122, 11 978 cc, in-line 6 cyl. turbodiesel (1991…