Is the term 'manufacturer', within the meaning of the first indent of Article 24(2) of Council Directive 2003/96/EC restructuring the Community framework for the taxation of energy products and electricity, to be interpreted as also including coachbuilders or dealers, when they have fitted the fuel tank as part of a process of producing the vehicle, and the production process was, for technical and/or economic reasons, carried out through division of labour by various independent businesses? If the first question should be answered in the affirmative: What interpretation is to be given, in such cases, to the factual criterion, in the first indent of Article 24(2) of Council Directive 2003/96/EC, whereby the vehicles in question must be 'of the same type'?