The original Skunkworks optimizes for a low production volume of vehicles which operate in a very extreme band of performance. And yes these projects are able to deliver within budget, but they are still very expensive machines. This is totally opposite to what is applicable to Ford, where really the innovation needs to be in the factory.

The other key lesson from the Skunkworks book, which is applicable, is that to the greatest degree possible, one should not reinvent the wheel. Reuse parts from other high production vehicles, which have proven their reliability. Focus the innovation tactically.