I think I answered you on another thread or site, but here goes.

It won't make a difference because either way, you just started the new position and won't have much to say about it other than the reasoning for your choice.

So your decision should be based on which job you feel is best for you (and your family if you have one) -- regardless of your b-school plans. The reason is simple: b-school isn't an option yet, whereas these 2 job offers are real and in front of you. Don't make a choice now for the sake of something down the road (b-school) which may or may not happen. Again, from an admissions standpoint, either choice is fine.

Having said that, it looks like the Fiat/Chrysler job is more compelling - better pay, and in a more interesting industry (at least in my view - but then again I'm a car guy).

I agree with the other posters, but would add that the first option allows you to earn an official promotion and see the business unit from the strategic planning side.

I'm going to take a different view than some of my peers. I think that if the first job is attractive to you, then for the purposes of b school applications, it is the better move. It shows consistency and a promotion.

First, you have a very strong professional profile, both in terms of the McKinsey tie in, and b schools love traditional industry as well. Therefore, I don't feel you need to further augment your resume with an industry/company change or trade up. Some applicants might but you don't.

Second, if you change jobs now, then I believe you also more invite the question of why get an MBA now? Why not wait a couple of years given you just started a new adventure? These questions are sure to come up in your essays and interviews, so my advice is stay put for now, and if you don't get accepted to b schools shortly, you can always change jobs if you are then so inclined.