I don't recall ever seeing "fully working product" as part of the advertisements/PR for SE5.
Dan_ said:
"No basis to compare cars and software? ... Why else do you need?"
In order to make a strong, useful analogy, the objects you are comparing need to have a fair level of similarity. The more similar they are, the stronger the analogy. The more dissimilar they are, the weaker the analogy. Apples to oranges, yes. Both are fruit, both are round, they have similar shapes. Apples to jet planes? Pretty weak. Analogy is an oft-abused tool on the Internet...