Right, the best D8C Euro 4-5 Engine because fully Volvo design and engine, but 7.1/2 liter/D7E = Deutz Engine and Volvo/Renault design, you know, simple german engine but if is 7 liter Euro 3 and 8 liter Euro 4-6 = Swedish Engines.
The video was expected to be accompanied with narration about the disassembled parts. A overhauling was also expected with identification of defective and damaged parts. Unnecessary headache evoking music is annoying