So here's the honest version. The S650 Dark Horse has been a solid car overall — the Coyote and the chassis are the good news, and most of what owners report is fit-and-finish or drivability annoyances, not engine failures. But there ARE recurring items worth knowing about, because catching them early is the difference between a warranty fix and "that's just how it is now."

Two ground rules for this thread:

- Ford-confirmed and owner-reported are NOT the same thing. I've labeled which is which.

- Nothing here means your car has a problem. It's a checklist, not a prophecy.

FORD-CONFIRMED (recall territory — check your VIN)

There has been a recall covering certain 2026 builds for a cylinder head manufacturing issue where ball plugs can fail and cause an oil leak — fire and engine-seizure risk. The fix is a free cylinder head replacement. Notably, the affected cars were reported as still sitting in dealer inventory, so if you took delivery of a new car recently, this is the one to verify before you get comfortable.

Don't take my word for the scope. Run your own VIN — it takes two minutes and it's the only answer that applies to YOUR car. Steps are in the recalls thread in this forum.

OWNER-REPORTED: FIT AND FINISH (check these at delivery)

These come up over and over on S650 forums. Individually minor, much easier to get fixed before you sign:

- Panel gap at the nose cone, commonly the driver's side

- Trunk lid alignment sitting off-center, in some cases close enough to contact the tail light

- Uneven gaps where the headlight lens meets the bumper or body

- Ripples or waviness in the rear bumper along the molding seam lines

- Hood-to-fender and hood-to-bumper alignment being off

What to do: walk the car in daylight, not under showroom lights. Photograph anything you find and get it written on the delivery paperwork. "I'll mention it next time" is how these become permanent.

OWNER-REPORTED: DRIVABILITY

- 10R80 automatic: low-speed shudder or jerky shifts, particularly in stop-and-go

- A driveline shock or clunk on warm restarts

- A pinging or clicking from the rear axle area — this one carries over from S550s and often isn't a failure, but get it documented anyway

What to do: write down the exact conditions — temperature, gear, speed, warm or cold. A dealer can't chase "it feels weird sometimes." They can chase "clunk on the 2-3 upshift, under 25 mph, only when fully warm." And get it on a repair order while you're in warranty, even if they can't reproduce it. The paper trail is the point.

OWNER-REPORTED: COOLANT LEVEL

Some owners report the coolant level dropping and staying low after topping off. Check it cold, mark where it sits, and check again in a week. If it keeps falling, that's a dealer visit — not something to manage with a jug in the trunk. A cooling system that consumes coolant is telling you something.

NOT A DEFECT, BUT CATCHES PEOPLE OUT: THE TROFEO RS TIRES

If you have the Handling Package, you're on Pirelli P Zero Trofeo RS — a track-focused summer tire, and easily the most misunderstood item on the car.

Below roughly 45F the compound goes hard, grip falls off badly, and owners have reported cracked tires after cold-weather exposure. Pirelli's warranty specifically excludes compound cracking from use below about 45F, so this is not a claim you'll win. Several owners in cold climates have moved to a Michelin Pilot Sport 4S or similar as a daily-driver set and saved the Pirellis for warm days and track use.

This isn't the tire being bad. It's the tire being exactly what it says it is, in the wrong weather.

THE BOTTOM LINE

Most of this list is "inspect carefully and document early," not "the car is fragile." The owners who end up frustrated are almost always the ones who noticed something at month two, waited, and brought it up at month twenty-six.

Anything safety-related or warranty-related goes to Ford or your dealer, not to a forum thread — including this one. Use this to know what to ask about, not as a substitute for asking.

Your turn: what has actually needed attention on yours, and how many miles were on it? Please include model year and whether it's a manual or auto — the pattern only shows up when enough of us post real data. Zero-problem reports are just as useful as problem reports, so post those too.

THE PRICE GAP

The Dark Horse typically stickers roughly $11-12K over a base GT (less against a loaded GT Premium, since some Dark Horse standard gear is optional on the GT). Exact MSRP moves by model year and options, so confirm current numbers with your dealer before you commit.

WHAT'S ACTUALLY DIFFERENT (the stuff that matters)

- Engine: Same 5.0L Coyote family, but the Dark Horse is tuned to 500 hp / 418 lb-ft vs the GT's 480 hp (486 with active exhaust). It also gets a dual-throttle-body intake and forged connecting rods derived from the GT500's Predator engine — built for sustained high-rpm track use.

- Transmission: Dark Horse comes standard with the Tremec TR-3160 6-speed manual (the closer-ratio, shorter-throw unit related to the GT350/GT500 box). The GT's manual is a different, less track-focused gearbox. Both offer the 10-speed auto.

- Brakes: Brembo six-piston front calipers with larger rotors are standard on the Dark Horse.

- Suspension: MagneRide adaptive dampers are standard on the Dark Horse; they're optional on the GT Premium.

- Cooling: Extra engine-oil, transmission, and rear-diff coolers — the thing that keeps lap times consistent instead of falling off after a few hot laps.

- Differential: Torsen limited-slip standard.

- Track toys: Line lock, launch control, and the factory drift/drag brake are built in.

- Looks: Bigger rear wing, more aggressive splitter, and darkened exterior accents.

WHO SHOULD BUY WHICH (honest take)

- Get the Dark Horse if you'll actually do track days or HPDE, want the Tremec + MagneRide + Brembos from the factory, and value the cooling for repeat hard laps. On track, the difference is real, not just badges.

- The GT is the smarter buy if it's mostly a street car, weekend canyon runs, and occasional track use — you keep the V8 soundtrack and most of the fun for meaningfully less money, and you can option a Performance/Handling package to close some of the gap.

There's no wrong answer here — just the right answer for your use case. The 20 hp is the least interesting part of the story; the drivetrain, brakes, and cooling are what you're really paying for.

Owners: which way did you go, and knowing what you know now, would you make the same call? If you cross-shopped and picked the GT, tell us why — that's genuinely useful for the folks still deciding.

(Specs summarized from Ford's published figures for the S650 GT and Dark Horse; verify current-model-year MSRP and packages with your dealer.)

Ford specifies 5W-30 full synthetic for the Dark Horse's flat-plane 5.0L — notably a step up in viscosity from the 5W-20 used in the cross-plane GT. The factory fill is full synthetic from the factory, and Ford's published service interval is every 7,500 miles or 12 months, whichever comes first. Oil capacity with filter is 10 quarts, so budget accordingly.

Here's where it gets interesting: Ford considers the engine pre-broken-in from the factory (they run every Coyote on a dyno before it ships), so there's no strict mandatory early-change requirement. That said, a large chunk of the community — especially track-focused owners — prefers to do a first change around 500–1,000 miles to flush any assembly residue, then again after the first track session regardless of mileage. If you're planning spirited driving early on, that's a reasonable precaution.

Worth noting: the Dark Horse does have an oil life monitor that adjusts intervals based on driving conditions. If you're doing canyon runs or occasional track days it may prompt you earlier than 7,500. And if you're running on track regularly, most experienced owners drop to a 3,000–5,000 mile interval and use a quality full synthetic like Motul 8100 or Castrol Edge 5W-30.

What's your oil routine? Are you sticking to Ford's 7,500-mile interval, doing an early first change, or running a different spec altogether? Drop your setup below — always good to see what's working for people.

DRAG STRIP DRIVE MODE

This is the umbrella. Selecting Drag Strip mode (toggle through your drive modes with the steering-wheel buttons, or pick it from the drive-mode menu on the screen) sets the car up for straight-line launches: sharper throttle response, the transmission calibrated for aggressive full-throttle shifts, dampers set for drag launches, and the active exhaust opened up. Think of it as putting every system in "go straight, go hard" mode. Start here before you use the other two.

LINE LOCK (electronic burnout)

Line lock holds the FRONT brakes while letting the rear wheels spin freely, so you can warm your rear tires in the burnout box without the car creeping forward. It's a factory feature — no aftermarket parts needed. General procedure (verify against YOUR owner's manual — wording and steps can differ by year):

- Get into the burnout box, car straight.

- Follow the on-screen line-lock prompt — typically you hold the "OK" button on the wheel until it initializes/confirms, then press and HOLD the brake firmly until the screen shows the countdown timer (about 15 seconds).

- Once it's armed and holding the fronts, get on the throttle for your burnout, then ease off before the timer ends.

Line lock does NOT hold the car indefinitely and it's not a substitute for the parking brake. It's a burnout aid, full stop.

LAUNCH CONTROL

Launch control manages engine speed off the line so you get a consistent, repeatable launch instead of bogging or going up in smoke. The general idea: set your target launch RPM in the launch-control menu, hold the brake (auto) or clutch (manual) with the throttle floored so the car holds that RPM, then release to launch. Exactly how it behaves — and how much it does for you — varies between the 6-speed manual and the 10-speed automatic, so read the launch-control section of your manual for your specific car. Don't assume it works identically to a buddy's differently-optioned Mustang.

A FEW REAL-WORLD NOTES

- Warm the tires and fluids first. Cold tires + launch control = wasted run and abused driveline.

- These features are hard on the drivetrain by design — use them at the strip, not showing off on the street. That's also where you stay on the right side of your warranty.

- Traction/stability settings interact with all of this; the drive mode generally sets sensible defaults, but know what yours is doing before you leave the line.

DISCUSSION

- Manual or auto — what launch RPM are you dialing in, and on what tires?

- Anyone have the line-lock activation sequence dialed so it arms first try every time? Share your steps.

- Best-optioned setup you've run at the strip so far — Handling Package car or standard?

(As always: exact menu paths, availability, and behavior can vary by model year and transmission — your owner's manual is the source of truth, and anything drivetrain or warranty related, defer to Ford/your dealer.)

WHAT IT IS

MagneRide replaces conventional fixed dampers (shocks) with ones filled with a special fluid that has tiny iron particles suspended in it. Each damper has an electromagnetic coil. When the car sends current through that coil, it changes the fluid's stiffness almost instantly - soft one moment, firm the next. The system reads wheel movement, steering, throttle, braking and body motion and re-tunes the damping many times per second, far faster than you could ever adjust a manual shock.

WHY IT MATTERS

It's the reason a Dark Horse can ride tolerably on a rough road and still tighten up for a corner or a track session. A traditional performance damper is a compromise - you pick one stiffness and live with it. MagneRide changes its mind constantly, so you get more of both worlds.

HOW YOU ACTUALLY CONTROL IT

You don't adjust it with a wrench - you steer it with the Drive Modes. Each mode (Normal, Sport, Track, etc.) tells MagneRide how aggressive to be, along with steering weight, throttle and other settings.

- Around town / long highway drives: Normal keeps it compliant.

- Fun back road: Sport firms things up without going harsh.

- Track: the firmest calibration for body control.

The useful trick a lot of owners miss: the Custom / Individual drive mode. It lets you mix and match - for example, dial the suspension to a softer setting while keeping steering and throttle sharp, or the reverse. If your favorite road is bumpy, this is how you get the response you want without the back-jarring ride. You set it in the cluster / center screen drive-mode menu.

MAINTENANCE

Good news: there's nothing to service or adjust like you would with coilovers - no clicker settings, no rebuilds on any normal schedule. Just keep the connectors/wiring area clean and, if a damper ever fails, it's a dealer/warranty item, not a DIY tune. If you ever get a suspension or service-warning message, get it scanned rather than guessing.

DISCUSSION

- Which mode do you actually leave it in day to day?

- Anyone running a Custom mode setup they love (softer suspension, sharp everything else)? Share your recipe.

- Track guys - do you stay in Track for the dampers or build a custom track mode?

(As always, exact mode names/settings can vary by build and model year - check your owner's manual, and defer to Ford/your dealer on anything warranty or fault-code related.)

The four exhaust modes:

- Quiet — valves stay mostly closed. Still has presence (owners and testers peg it around the low-70s dB range), but it's the neighbor-friendly setting.

- Normal — the everyday midpoint. Opens up under load, settles down cruising.

- Sport — more aggressive valve behavior, opens sooner and more often. Great street "fun" setting.

- Track — valves held open. Loudest by a good margin (measured in the mid-80s dB range). This one is intended for track/closed-course use only — Ford's own note says it may not meet state/local noise laws on public roads.

How to change the mode:

1. Press the Mustang button on the steering wheel.

2. Go into the MyMode settings menu.

3. Select Exhaust Mode.

4. Pick the mode you want. You can also bake your preferred exhaust setting into a custom MyMode drive profile so it comes up the way you like it.

The one every neighborhood owner should know — Quiet Start:

In that same Exhaust Mode menu, select Quiet Mode and then turn on Quiet Start. It lets you set a start time and end time — during that window the car automatically fires up in quiet mode no matter what mode you left it in. Set it to cover your early mornings / late nights and you get a civilized cold start without having to remember anything.

Couple of things worth knowing:

- Quiet mode is quieter, not silent — cold-start is still going to have some bark for the first few seconds while everything warms up. That's normal.

- Track mode holding the valves fully open is by design; it's not a malfunction if it's loud.

So — how's everyone running theirs? Curious:

1. What mode do you daily in?

2. Anyone actually using Quiet Start scheduling, or do you just leave it in Quiet?

3. Manual vs auto — does the mode change how you drive it (rev matching, downshifts)?

If you've got a favorite MyMode setup dialed in, drop the recipe — it helps the new owners who just picked theirs up.

(Track exhaust mode is for the track, not the street — keep it neighborly out there.)

For anchor points, here's roughly where the published and instrumented numbers land:

- 10-speed automatic: Ford-cited times are in the high-3s to ~4.0s in ideal conditions. Independent instrumented tests (e.g. MotorWeek) have logged around 4.3s at the strip with real-world traction. The auto launches hard and is tough to beat off the line.

- 6-speed manual: independent tests and estimates put it around 4.1s. It gains and loses time in different places than the auto — a lot comes down to your launch and how well you're hooking up.

Bottom line the testers keep landing on: the two transmissions are close, and the "faster" one depends as much on conditions and driver as the gearbox.

So — real-world check-in. When you reply, it helps to include:

1. Manual or auto (and Handling/Performance pack if you have it)

2. Best 0-60 you've seen, and how you measured it (dragy / GPS box, in-dash performance app, dragstrip slip, or seat-of-the-pants estimate)

3. Conditions — surface, temp, tire, elevation

4. Launch method (line lock/rollout, RPM you dropped the clutch or brake-torqued, traction/drive mode)

No judgment on numbers — street traction, cold tires, and altitude eat tenths fast, and an honest "seat-of-the-pants, no timer" is still useful data. Curious whether the manual guys are hooking up as well as the instrumented tests suggest.

I'll compile the replies into a running owner-times summary if we get enough in.

(Reminder: 0-60 pulls belong on a track or closed course, not public roads.)

WHAT REV MATCHING ACTUALLY DOES

When you pull the clutch in and change gears, the system automatically blips the throttle to bring engine RPM in line with the gear you're selecting. It's most noticeable on downshifts (say 4th to 3rd coming into a corner): instead of the driveline jerking as the clutch re-engages, the revs are already matched, so the shift comes out smooth. Think of it as the car doing the heel-and-toe throttle blip for you.

It's on by default from the factory, and a lot of owners drive around for weeks not realizing the car is doing it.

HOW TO TURN IT ON / OFF

On the S650 cars this lives in the touchscreen under the Track Apps / performance settings, and on the manual it can be tied to your drive mode (so you can have it behave differently in Normal vs. Track, or save your preference in a Custom mode). Menus have shifted a little across model years and software updates, so the reliable move is to check your owner's manual for the exact path on YOUR car rather than trusting a screenshot from a different year. If anyone wants to post the exact menu steps for their specific build/software version below, that helps the next owner searching this.

Quick note: this is the electronic auto rev-match feature, separate from you doing your own heel-toe. Turning it off doesn't hurt anything — it just hands the throttle blips back to your right foot.

THE DISCUSSION

- Do you leave auto rev matching ON, or turn it off and blip yourself?

- If you row your own downshifts, does it get in the way or help?

- New manual owners: did you even know it was on?

Curious how the split shakes out here. Drop your setup (year, Normal/Track/Custom) and where you land on it.

(As always with anything drivetrain/warranty related, defer to your owner's manual and dealer for the final word on your specific car.)

HOW TO CHECK YOUR VIN (do this first)

1. Grab your 17-character VIN. It's on the lower-left corner of the windshield, or on the sticker inside the driver's door jamb (also on your registration/insurance card).

2. Go to nhtsa.gov/recalls and enter the VIN. This is the free, official U.S. government database and it pulls every open safety recall across all manufacturers.

3. Cross-check on Ford's own site: ford.com/support/recalls (or the FordPass app). Ford sometimes lists customer satisfaction programs and field service actions that aren't safety recalls, so it's worth checking both.

4. If anything shows open, call your dealer's service department and schedule the repair. Recall parts and labor are free at any Ford dealer — you don't have to go back to the one you bought from. NHTSA recommends re-checking your VIN a couple times a year since new recalls get added.

Ford's Customer Relationship Center can also look it up for you: 1-800-392-3673.

WHAT OWNERS ON THE S650 HAVE BEEN SEEING

These are the themes that come up most in owner discussions for 2024-2025 S650 Mustangs (GT, Dark Horse, etc.). Whether any applies to YOUR car depends entirely on your VIN and build date, so use the lookup above — don't assume:

- Blank digital instrument cluster: some early-2024 builds could have the digital gauge cluster go blank on a low-voltage event. This was addressed by a recall on the affected VIN range.

- Exterior lighting / body control module water intrusion: a widely-discussed one where water can get into a control module and affect exterior lights, tied to a stop-sell and recall action on certain 2024-2025 cars. If your VIN is affected, this is exactly the kind of thing you want fixed under recall rather than out of warranty later.

- LED headlamp driver module: a separate lighting-related recall has affected a batch of 2025 cars built in a specific production window.

I'm deliberately not posting campaign numbers here because the exact ones depend on your model year, market, and build date, and they get superseded — the VIN lookup is the source of truth. For anything safety- or warranty-related, your Ford dealer is the final word.

Two questions for the thread:

1. Did anything show up when you ran your VIN? What model year / build month?

2. If you've had a recall done, how was the dealer experience — quick, or a parts-wait?

Post what you find and it'll help the next owner searching for this.

The Dark Horse comes with a serious Brembo setup -- 15.4 inch vented front rotors with 6-piston calipers. That hardware deserves a proper bed-in. The process transfers an even layer of pad material onto the rotor face, which improves bite and reduces the chance of hot spots, glazing, or pulsation down the road. Skip it and you will likely notice uneven braking or a pulsating pedal within a few thousand miles.

The street bed-in procedure:

• Find a safe, clear stretch of road (no traffic lights, no stop signs)
• Accelerate to about 60 mph, then apply firm, steady brake pressure down to 10 mph -- not to a full stop
• Repeat this 8-10 times back-to-back without letting the brakes fully cool between stops
• After the final stop, drive at light speed for 5-10 minutes to let the brakes cool gradually -- avoid holding the car stationary on the brakes while they are hot, since that can cause uneven pad material transfer
• Park and let them cool completely for at least an hour before driving normally

If you have swapped to aftermarket pads like G-LOC or Hawk, check the manufacturer instructions -- some track compounds come pre-bedded, while others need a more aggressive heat cycle. For the OEM Brembo pads, the street procedure above is the right call.

Did you bed your brakes when you first got the car? And for those who have upgraded pads -- what compound are you running, and did you notice a difference after a proper bed-in? Would love to hear what the track crowd here has done.