Fair enough.  They still look quite similar. 

My point was that VW is very aggressive on platform sharng and common parts among different brands.  That's their industrial religion. VW is not nearly as horrible about it as the American makers but they are not shy about it either, and there is platform sharing up and down the product spectrum.  You save a lot of money on tooling, R&D, and industrial development costs sharing platforms but dilute brand uniqueness - this is the clear trade off.  Since this is in their DNA as such, and btw Piech was the guy who pushed this starting in the early 1990s when VW had a near-death financial experience of its own, the risk to Porschephiles that as Porsche falls under their wings they look to do this with the iconic Porsches, or that a lot of the new development becomes the Porsche version of the VW platform of choice.  Ford did it with Jaguar.  GM did it with SAAB.  BMW thankfully backed away from doing it with Rover.    

For what its worth, there are very few instances of successful "value-enhancing" automotive M&A in the last 25 years.  The pattern is generally one of brand-damage.  Anything the American makers have touched they have damaged substantially.  Daimler's  Chrysler episode cost it immense resources and Chrysler is an eventual chapter 7.  BMW basically killed Rover off after they realized they could not work with it.  Renault-Nissan has worked ok but that was not a full merger.  Almost all successful automotive companies have grown their brands and capabilities organically, which Porsche was doing too - until they got crazy.

From the sound of things, Qatar may buy the Porsche option book including those dangerous written puts and take some pressure off the funding costs.  There is a ton happening behind the scenes and the quality of disclosure would get these guys arrested in the US so I don't really have a handle on what's going on specificallly - but it does not sound like anyone at Porsche has a credible game plan either other than sticking their hands out.  It appears very much though that there are a variety of shorter-term funding mechanisms that trigger a 3-alarm fire every time they need to be rolled over because the creditors are in no mood to fund these kind of games.   

The moral of this story and of the credit bubble in general is that buying stuff you can't afford with borrowed money is the fastest way to go from being comfortable or rich to becoming poor or destitute.