I'm not sure how long a 4 cyl Eco boost will last as far as miles. I'm wondering why anyone would want one? I can't believe ford would put a 4 cyl in a mustang to begin with turbo or not . I think the mustang should be a v8 only car , with options as far as 5.0 , 5.8 , 427, you don't see any 4cyl corvettes
You realize without all the sales of the V6 and 4 banger cars the V8 wouldn't exist or would be much much more expensive. If ford wants to sell a mustang with smaller engine options thats fine by me. That just means the mustang will continue to be for sale.