An I6 is bigger pain in the ass to add to engine packaging and crash cell issues then an I4 or a V6 would be the major issue. As for the all new Ecoboost I4-The original designs where based on Mazda JV engines from 15-20+ years ago, so they where due a major upgrade. They don't show any major improvement in MPG or performance, so like stated before-just keeping ahead of the emissions situation. The Mustang gets 1 MPG more on the highway and the Bronco actually loses 2 MPG city with the new engine (at least on Fuel Economy.gov)   The  2.7/3L Nano Ecoboosts are "new" design that only came out 10 years ago. 

Its not like the mustang hasn't had white wheels before either https://fordauthority.com/2023/03/1992-ford-mustang-convertible-summer-edition-up-for-auction/  

They’re not even close to the same, at least in the South.  

Forgot about the 14"ers!  Thanks!  

These were on 83-84 Mustang GT's.....  

The move to 3.5 V6 Ecoboost engines years ago has served Ford well and adding the Nano 2.7 and 3.0 V6 EB engines almost guarantees that Ford already has heavily amortised engine platforms that can  do the job until no longer needed.   While the 2.0/2.3 MPC EBs could possible be extended to I-5 or I-6, I don’t think that disruption is warranted at this time but perhaps an option for the future when ICE builds start to reduce significantly.   My earlier comment regarding buy in of the Ram 3.0 DOHC I-6 turbo was in error as John Lawler made no such reference to Ram as a possible engine supplier. The truth is that Ram would kill to have the sales level that Ford has with F Series, so Ford must be doing a lot of right moves.   Production upgrades to both V8 engine plants were announced earlier this year, so hopefully USMC agreements can be negotiated to permit this proceeding.      

Except the wheels don't resemble any 79-93 Fox 5.0 body wheels (TRX, phone dial, turbine, 5-star pony, or Cobra fan blades), but I still dig it.

Not bad.  I kinda wish they called it "LX" just like the LX trim package many Fox Mustangs had back in the day.

The wheels and grill are a throwback just like the Bronco heritage models.  That’s what makes it a heritage version.

MPC upgrades had more to do with staying in front of emissions limits, I'm hearing anecdotes that the 2025 2.0 EB does not have GPF at least on some models.