Fair enough, but I think that's crazy doing 100k on finance when barely making that per annum (that's just one example obviously), you are asking for trouble, I would only ever do a car that expensive on finance if i was making at least 1.5 or twice the cost of the car per year.
Then again, I guess that's how people get into so much debt going and buying a house way above what they can afford without thinking about it first, there are alot of suburb around melbourne and other capital cities where people buy houses/cars purely for the image/trend of that area when they can barely afford to live I think