I believe there is also a maturity factor that might effect certain buyer's, the younger consumer's are more likely to purchase a product that is percieved as "a must have in today's fashion" and unfortunatley the Ford brand is not that for this generation. Where as older more mature consumer's will do their homework and purchase on what actually suit's their day to day need's.
This could also back up Norm's statement that V8 people will buy a V8 product, which lean's more to those that grew up in the era where V8's were the thing.
These day's the younger gen are keen on Turbo's etc and Ford did see this as a market that they pursued, But did they look at the Long term effect's of this, did they bite the hand that feed's them ?.