GTD Weight

[19gt3rswes]

What is this beast going to weigh? I have heard mixed messaging. On one hand I heard it will weigh around a GT500, and on the other I have heard between 3300 and 3500 lbs. Those are grossly different numbers ... could be in the neighborhood of 900 lbs difference between the two.

You can hide a bit of weight with a great chassis, but you can't fight physics. The way this car will ultimately handle is going to have a lot do to with how much weight that Ford manged to cut as a 4000lb+ vehicle is extremely hard on brakes, tires, and fuel when driving on the track especially.

 

[dbk]

I honestly have no idea why anyone thinks it will weigh 3300-3500 lbs. The last Dark Horse C&D weighed was 3,992 lbs, and that’s a car with significantly less hardware. Yeah, some stuff like the CF body panels and titanium exhaust remove weight, but you’re adding back in a hydraulic system that weighs a significant amount, a supercharger, a ton of cooling for bigger/faster everything etc. Even the glass suspension window adds weight.

Obviously all things being equal I’d prefer a lighter car but the car is still based on an S650, so there’s only so much you can do. I agree that the car is going to eat tires and brakes, but these guys do unbelievable magic these days with that ASV suspension and tire. I guarantee you the driving experience gets compared favorably with a GT BS or 992 3RS.

Plus weights everywhere are just crazy. This gen AMG GT base curb is 4,343. Dragtimes weighed his Revuelto and it was 4,335. ZR1 with fluids is right at 4,000 lbs. Heavy times.

 

[PonyRacer]

It's strange to me that Larry Holt explicitly stated in that interview it was going to be around GT500 CTFP weight (but they're trying to shave off a few pounds) and I've been seeing people say that it'll be around GT3 weight despite that. Realistically they could MAYBE get the car to 3850 at the lightest but 3900-3950 is probably where we'll see this thing end up. My GT500 always feels spectacular around track despite the weight so I can't imagine how good the GTD is going to feel.

 

[PetrolHead]

've been seeing people say that it'll be around GT3 weight despite that

I think I know why that is. I don't know if they have fixed it yet but a few month ago, if you googled "mustang gtd weight" it gave you the weight of the GT3 RS, becouse they were mentioned in the same article and someone must have counfused the two weights.

 

[hand assembled]

I think I know why that is. I don't know if they have fixed it yet but a few month ago, if you googled "mustang gtd weight" it gave you the weight of the GT3 RS, becouse they were mentioned in the same article and someone must have counfused the two weights.

yeah. this is the article. https://www.thedrive.com/news/the-2025-ford-mustang-gtd-takes-on-the-world-and-might-actually-win

it caught me out too, until i read the entire article, as this is the line that pops up.

"All of it weighs just 3,268 pounds."

next paragraph:

"While the Mustang GTD’s weight is unknown, it will very likely be much heavier than the Porsche."

 

[dbk]

One thing I will say is that there is an unavoidable trade-off in weight for the performance benefit of the slammed track mode on these aero-heavy cars. The GT gained something like 160 lbs with all the hydraulic shit but the car was still (supposedly) faster slammed in track mode than it would have been with a permanent road-legal ride height minus the weight. Really small changes increase or decrease those underbody aero effects, which is why you see teams get DQ'd for minimum ride height infractions.

 

[hand assembled]

there is an unavoidable trade-off in weight for the performance benefit

this, in so many ways.

a lighter chassis and doors would be the obvious way to cut weight but that's a whole different ball game... and price.

 

[Tomster]

this, in so many ways.

a lighter chassis and doors would be the obvious way to cut weight but that's a whole different ball game... and price.

At what will be near $400,000, i think maybe there should have been a different approach than the S650 chassis. The near 4000 pound weight makes a car less maeuverable on a more technical track. Yes, i get that they are changing the suspension and adding wider tires. The fact is physics is physics. Mass and inertia make the problem of changing magnitude and direction as needed on a track.

I have found this simple issue one of the biggest issues with the GT500. Yes, I know the GTD will not be a 500.

You can hide the weight with bigger brakes, wider tires, high HP engine, but at the end of the day a heavy car is a heavy car and with that brings about the problems that go along with it. For instance, I go through almost 2 sets of tires and front brakes over a weekend. The tires loose their grip after they become so heat cycled that you just slide all over the place because you are trying to manage (turn, brake) a very heavy car.

The GTD has a lot of similarities to the 500, as well as differences. I wish Ford would just release all the data to those that signed the NDA to help us make our early decision as to obtain the car or not.

 

[hand assembled]

The GTD has a lot of similarities to the 500, as well as differences. I wish Ford would just release all the data to those that signed the NDA to help us make our early decision as to obtain the car or not.

larry holt basically released the weight when he said it would be close to the gt500, it is what it is - a mustang with a steel chassis and steel doors. nobody is forcing you to do anything. you can base your decision on counting on it being about 3900 lbs. give or take 100 lbs. either way.

 

[Fat Boss]

There's an image floating around of what is purportedly the Application for Certification showing 4343 lb curb weight.

 

[Tob]

Purportedly? I posted a few of the images from one of a number of GTD certifications that the EPA finally released. The 4,343 lb curb weight was Ford's submission to the EPA in seeking both Federal and CARB approval. There's more data there for anyone that cares to look.

 

[PetrolHead]

On Nürburgring official website it says the kurb weight is 1724 kg (3800lbs).

 

[jbyrnes]

I'll guess that the 4343 curb weight is the GVWR number that would include the driver, passengers, accessories, fluids, and cargo. Now if the 3800 lb weight at the Nurburgring was a measured weight even without the driver but would have included the weight of the roll cage then we're likely in 3,700 range, more in line with what the guesstimates have been.

 

[Tob]

That is interesting. Trying to find the third party that scaled car but regardless...

Curb weight includes a full tank of gas. The 16.1 capacity means 97 lbs of fuel, so the car would be 3,703 lbs empty. That weight would also include mandated safety equipment, which includes a roll cage. I'll go out on a limb here and say that safety equipment, telemetry, etc, added ~100 lbs. That would make the car 3,603 with no fuel. Seriously?

"while the Mustang GTD that completed the sub-seven-minute lap was entirely stock, it did include motorsports-derived safety gear mandated by the Nürburgring. That includes a competition seat with a five-point harness and a roll cage."

Mustang GTD umrundet Nürburgring schneller als jedes andere Auto einer amerikanischen Marke

Die legendäre Nürburgring-Nordschleife in Deutschland gilt als Goldstandard für die Entwicklung von Sportwagen. Der 2025er Ford Mustang GTD ist das erste Fahrzeug einer amerikanischen Marke, das eine Runde in unter sieben Minuten absolviert hat.

nuerburgring.de

I'll continue to try to find the certified third party data that weighed the car in Germany along with exactly how the car was equipped. Until then, I tend to favor the certified data submitted to the EPA in order to achieve approved for sale in the US and use on public roads status.

 

[Tob]

I'll guess that the 4343 curb weight is the GVWR number that would include the driver, passengers, accessories, fluids, and cargo. N

The definitions that the US EPA has to go by are listed in the US Code of Federal Regulations. First off, curb weight...



GVWR...

Federal Register :: Request Access

www.ecfr.gov

The GVWR, as submitted by Ford to the EPA is 4,800 lbs. Of note, the HP number submitted, likely Ford's claim at the time of the submission. There are multiple certifications and updates for the GTD.



The weight number submitted to the EPA was direct from Ford and is not something they would ever misrepresent. From a guidance letter to manufacturers...



I'd love it if the GTD was 3700-3800 lbs. Until then I can only trust certified data from Ford/EPA. I take heed in what Dave was implying at the end of post #2 as well. Again, I'd love to see certified data to the contrary from some alleged third party in Germany along with precisely how the vehicle was equipped.

Or Ford could finally come out and just tell everyone, hey, the Mustang GTD weighs x,xxx lbs. But for some strange reason, they have chosen not to.

 

[PonyExpress-47]

The only way 4343 and 3800 make any sense would be if the example tested was a steel body proto and the carbon panels drop 400 ish pounds. Highly speculative at best.
Speed Kore made a full carbon kit for the 350 that dropped 400-600.

 

[Specracer]

Speed Kore is not going to have to adhere to any federal crash standards.

 

[Tob]

The only way 4343 and 3800 make any sense would be if the example tested was a steel body proto and the carbon panels drop 400 ish pounds. Highly speculative at best.
Speed Kore made a full carbon kit for the 350 that dropped 400-600.

The early cars/prototypes all had VIN's designating them as having been manufactured in the USA. Looking closely at the VIN's, Ford used completed (and often loaded) DH cars and then gutted them and rebuilt them as GTD's. Hard to get the weight down with a steel tub/chassis, hydraulic system for raising/lowering, supercharger/cooling hardware, dry sump hardware, transaxle and custom hardware aft of the engine block, etc. A carbon tub would have been nice but I kind of doubt that was ever seriously considered given the original price point.

 

[PRED8TR]

I know it’s grasping at straws but do we know how much net weight savings comes from PP lightweight, after offset by active aero components, along with mag vs alum wheels if/when they become available, and how much lighter are PP half shafts?

 

[jbyrnes]

Well maybe this is a clue to the big weight disparity between the Nurburgring measured and the 4343 curb weight. Looking at the certification summary, it appears that no one told us that the GTD is now 4 wheel drive. Who knew.