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Jarstang

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UPDATE: Our sources tell us that this mule is the street version of the upcoming Mustang GT3, which Jim Farley teased here.

We just got our first physical evidence that Ford is working on the next level of performance for the Mustang S650, with these shots of a disguised Mustang prototype showing performance upgrades—including a new center-exit exhaust layout.

The disguised Mustang coupe uses the S650 body, with a wing and modifications to the rear deck, along with a camouflaged front-fascia hiding what appears to be a more aggressive grille. The basis for this coupe’s front-fascia appears to be based on the Mustang Dark Horse.

Rumors have swirled that the Shelby GT500 prototypes have begun testing, but the prototype in these photos do not align with expectations for the next GT500, leading us to believe this may be another high performance variant in the works here.

The rear view reveals the most interesting detail with the revised bumper and a center-exit exhaust (hidden behind a wire mesh cage) clearly jutting out from the rear bumper. The outboard placement of the S650’s exhaust tips have been covered over.

This prototype is riding on Pirelli PZero tires, size at 275/40 R19 on the rear, with 255/40/R19s on the front wheels. The car sounded very aggressive, but we couldn’t make out specific noises to make any firm claims on the engine under the hood.

S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-1


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-2


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-3


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-4


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-5


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-6


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-7


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-8


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-9


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-10


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-11


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-12


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-13


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-14


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-15


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-16


S650 Mustang 📸 Mustang GT3 Road-Version Prototype Spied Testing with Center-Exit Exhaust s650-mustang-variant-prototype-center-exit-exhaust-17
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Dub347sbf

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60th anniversary Dark Horse?
 

f00man

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I’m glad they’re fixing the Honda Accord front-end. Ford needs to get rid of the FNV architecture and the locked ECU, and we’ll be golden. 🇺🇸
 

DeluxeStang

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Doesn't have the wide track mentioned by FA, but maybe this is one of several gt500 mules?

Edit: Nope, different thing entirely. The gt500 mules were also spied today. Very exciting day for mustang fans!
 
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agreywolfe

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figured it was going to be something like that, cant wait to see what it ends up being either way
 

Epiphany

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I like to disassemble things.
Our sources tell us that this mule is the street version of the upcoming Mustang GT3, which Jim Farley teased here.
They are merely testing an exhaust system on a rather mundane prototype. The street version of the GT3 will be quite a bit "different" than what you see there.
 

agreywolfe

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its probably more than just the exhaust, if it IS the GT3 then its going to have a lot of mechanical changes compared to the standard S650, so they could have just slapped a standard body on top of the test bed.
 

DeluxeStang

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They are merely testing an exhaust system on a rather mundane prototype. The street version of the GT3 will be quite a bit "different" than what you see there.
If you don't mind me asking, are you saying this as a guess based on what ford's done in the past, or are you saying this as an insider who's actually seen the prototypes?
 

MustangMac67

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its probably more than just the exhaust, if it IS the GT3 then its going to have a lot of mechanical changes compared to the standard S650, so they could have just slapped a standard body on top of the test bed.
My guess is that they are testing out different pieces to the final puzzle, like a new exhaust system and new grille inlets.
 

Spectre

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yes......

I’m glad they’re fixing the Honda Accord front-end. Ford needs to get rid of the FNV architecture and the locked ECU, and we’ll be golden. 🇺🇸
where do you see they're changing the front fascia?
 
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