So, does this mean you would be okay with the corollary of your inference? By not explicitly saying the major components are reliable, BMW is saying they are to be considered unreliable or poorly-made? You see, you can't really have an ultimate driving machine that PERFORMS if its major components are unreliable or poorly made ... IMO, it is poor logic to suggest BMW is not making any reliability claims regarding major components simply because they do not explicitly state it in their ads. It is, in fact, implied due to the connection those major components have with the other parts and claims being made - without reliable major components, those other claims aren't true or reliable either.