I'd be willing to bet most locals here still pronounce it "Porsh" and not "Porsha" as well.
Both would be wrong. Porsch-eh is closer to the German pronunciation.
Yes you are. The proper pronunciation of the last syllable is like an eh, as in the German word Danke. The way you wrote it sounds like the girl's name Portia.
I thought I'd read before that the 'sh' sound is at the end of the first syllable as well as the start of the second - so its something like Porsh-sheh rather than Por-sheh. Either way its awkward to put the fine points of pronounciation of another language into the middle of an English sentence, even if it is a name.
Looks like Webber's fans could learn some basic German to live on good terms with his new employer.
If they're Australian, we've bastardised the English language, what we can do to a foreign language is boundless