The New 2025 Porsche 992 GT3 RS MR Manthey Racing is Beyond Insane

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Looking at the 992 GT3 RS, you might think this car is as extreme as a GT3 can get. But Porsche's racing engineers at Weissach and Manthey Racing are treating the GT3 RS, like a blank canvas, and cramming in as much cutting edge aerodynamics as possible.  

If you've never heard of Manthey racing, they're an engineering and racing team that was established in 1996 and purchased by porsche in 2013. Manthey specializes in improving the performance of Porsche's most potent race cars. They also provide support to Porsche's factory team for races like DTM, the Bathurst 12 Hour, the 24 Hours of Nurburgring, AND the 24 Hours of Le Mans. 
And now the race engineers from Porsche and Manthey are combining forces to create a roadcar with Le Mans Hypercar levels of performance. 
This car is covered with so many new and complex modifications that it's almost overwhelming. To look at what's new, let's start by juxtaposing the upcoming GT3 RS MR with the current GT3 RS. 
With the two cars aligned, we can begin to see just how extreme the new upgrades are, as nearly every single aerodynamic component has been redesigned, and numerous additional components have been added. And to present another perspective of just how radical this car is, let's compare it to Porsche's current top of the line 911 based race car, the GT3 R. And with these two cars aligned, the GT3 R looks downright tame when compared to the GT3 RS MR. 
It's probably easier to talk about what hasn't been changed, as it appears the only aero components left untouched are the air pressure louver vents above the front wheels, the air intakes in front of the rear wheels, and the rear ducktail spoiler.

At the front of the car, we see a much deeper splitter, the addition of 2 dive planes on either side of the fascia, and the canards in front the front wheels have been simplified and are now angled outward to deflect air around the wheels. The moulding around the center intake has been extended forward, and the new front splitter expands into a raised ridge to deflect air around the front wheels.

From the profile view of the car we can see the canards behind the front and rear wheels have been made slightly larger, and hidden behind the front canard on the driver's side is a decal, that I can't for the life of me figure out what it is. It looks like maybe kind of a... ghost... skeleton, wearing a helmet, I don't know. If you have any ideas of what this is, please tell me in the comments. One of the prototypes has been spotted with an aero disc mounted to the rear wheel and this will most likely be part of the finalized Manthey Racing package, as a similar aero disc is offered with the package for the standard GT3. 

The most obvious updates are at the rear of the car, where the swan neck spoiler has evolved into a mess of spines and fins and plates. Mounted to the rear window, or what used to be the rear window, is a huge horizontal fin that helps provide lateral stability at extremely high speeds. 
The once enormous biplane wing is now an enormous triplane wing, and at either side of this enormous wing are a set of equally enormous endplates that feature a unique jagged rear edge. The endplates also angle out to a more extreme degree. And holding up this huge conglomeration of weight and downforce are a set of reinforced swan-neck vertical supports. 
On the roof, the two vertical fins have been replaced by two sets of 3 fins, now giving the car 6 in total. The additional fins were most likely installed to stabilize the air before it contacts the rear wing cluster. 


At the rear of the latest prototype we can see a complex system of electric harnesses running from various points at the back of the car into an opening in what used to be the rear window. These wires are most likely connected to numerous points on the newly designed rear diffuser and suspension, and are providing readings to what must be a bevy of advanced equipment concealed by the camouflaging on the rear quarter windows. 
We've never seen this much technology being used to analyze the aerodynamics on a road car before, so we know that this update is going to be incredibly advanced. 
The rear diffuser has been completely redesigned, and Porsche clearly took a page out of the 911 RSR playbook for this one. 
The airvaines are now deeper and channel the airflow in different directions. And like the 911 RSR, the splitter has a much rougher and unfinished appearance, unlike the more refined rear splitter on the GT3 RS.  
Unfortunately we can't see the bottom of this car but I have a feeling Porsche and Manthey have been working on some brilliant underbody aerodynamics for it.