Used Ford Mustang S650 (2024-2025): Buyer's Guide

Ford's seventh-generation Mustang arrived for 2024 carrying genuine engineering advances and a recall record unlike any Mustang generation in recent memory. By mid-2026, the S650 had accumulated more than ten NHTSA campaigns. Campaign 23V800000 told owners not to drive the car at all: the brake pedal assembly was manufactured incorrectly and loss of braking was possible. Campaign 24V593000 found a casting defect in the rear suspension knuckles of certain 2024 builds, with a documented risk of sudden loss of handling and steering control. Campaign 24V394000, specific to manual-transmission cars, found that the clutch hydraulic line was routed close enough to the exhaust manifold to melt, eliminating the ability to shift or disengage the clutch. One open recall as of July 2026, campaign 26V418, has no available remedy: in below-freezing conditions, the wiper motor loses communication with the steering column module, leaving wipers operable only at high speed with a non-functional washer. Replacement parts are not expected until approximately March 2027.

None of that makes the S650 a car to avoid. Consumer Reports surveyed 2024 owners and produced stronger reliability scores than the BMW 4 Series, Lexus LC, Honda Civic Si, and Volkswagen GTI. The Gen 4 Coyote V8 is the most capable naturally aspirated Mustang engine ever offered in a production trim. But the S650's first two years generated more recall paperwork than any Mustang since the first-generation IRS model. Knowing which recalls apply to a specific VIN and verifying every one has been remedied is the single most important step a buyer can take on this car.

The S650 Platform

The S650 is the seventh-generation Mustang and an extensive evolution of the rear-wheel-drive architecture used by the S550. It does not use the CD6 Explorer and Lincoln Aviator platform. Production began in spring 2023 for the 2024 model year. The 107.1-inch wheelbase and independent front and rear suspension carry over in concept, with revised geometry, a quicker steering ratio, and available MagneRide adaptive dampers on upper trims. Ford introduced a dual-throttle-body intake manifold across all S650 Coyote V8s, replacing the single-throttle-body S550 design.

Three distinct powertrains span a wide performance range:

A note on the Mustang GTD: the 2025 GTD is a separate halo vehicle with a supercharged 5.2L V8 making 815 horsepower at a price above $300,000. It is not a variant of this generation for the purpose of used-car evaluation. The Dark Horse uses a 5.0L engine, not a 5.2L.

Engines and Known Problems

2.3L EcoBoost Gen 4

The S650 EcoBoost makes 315 horsepower and is sold in the US only with the 10-speed automatic. There is no factory manual-transmission S650 EcoBoost. The Gen 4 engine is architecturally distinct from the S550's Gen 2 and Gen 3 versions in two ways that matter to used-car buyers.

The first is intake valve carbon buildup. Every direct-injection engine deposits carbon on intake valve stems because fuel never contacts the valves to wash them. The S550 EcoBoost required walnut blasting or a port cleaning at roughly 60,000 to 80,000 miles. Ford addressed this in the Gen 4 with a dual-injection system: port injectors run simultaneously with the direct injectors, continuously washing valve stems with fuel. As of mid-2026, no documented pattern of intake valve deposits has emerged in the S650 EcoBoost community. That is a genuine improvement, not a marketing claim.

The second is the water pump location. The S550 EcoBoost's internal water pump was an occasional failure mode that allowed coolant to enter the oil. The Gen 4 moved the pump to a belt-driven external position, eliminating that path entirely.

The Gen 4 uses a revised timing-chain and tensioner design. As of mid-2026, there is no established S650 pattern of early timing-chain failures. A cold-start listen is still sensible on any high-mileage direct-injected turbo engine, but buyers should not assume the earlier S550 service history automatically applies to this engine.

Recall-specific to the 2.3L: campaign 24V220000 covered a fuel supply line that could be damaged by adjacent components, creating a fire or stall risk. Because the US EcoBoost is automatic-only, manual-transmission campaign 24V394000 does not apply to it. Campaign 24V220000 should be stamped complete on any affected used EcoBoost.

Notable fault codes: P0300-series misfires (random or cylinder-specific) were documented on early S650 EcoBoost models and addressed via a Ford technical service bulletin. If a used-car scan shows misfire history, confirm whether the TSB was applied at a dealer visit.

Repair cost reference:

• Timing chain service (if needed later): $2,500-$4,000
• Fuel supply line recall (24V220000): No charge under Ford recall
• Misfire TSB (software update): No charge under warranty

5.0L Coyote V8 (GT)

The Gen 4 Coyote makes 480 horsepower in standard GT trim and 486 with the optional active exhaust. The dual-throttle-body intake is shared across all S650 V8s. Internal changes from the S550 Gen 3 include updated pistons and rings, revised oil system, and new fuel injectors.

The long-term record of the Coyote family is well-established. Multiple owners in the Mustang6G.com and Mustang7G.com communities have documented Gen 2 and Gen 3 cars reaching 200,000 miles on stock internals with consistent maintenance. The Gen 4 shares fundamental architecture, and no S650-specific catastrophic failure mode has been documented in owner forums.

Recurring issues found in S650 GT ownership reports:

An intermittent rear axle pinging noise, a metallic tick on initial movement, appears across Mustang7G threads and is more common on automatic models. No single root cause or repair has been confirmed. If you hear it consistently during a test drive, document it and request a dealer diagnosis before purchase.

Brake booster clicking, a repeated click from the firewall area under light brake application, appears in a subset of GT and EcoBoost reports. The symptom points to a check valve issue in the booster assembly. It is more cosmetic than functional but worth calling out at inspection.

The MT-82D4 six-speed manual in the GT carries the same reputation concerns as the previous-generation MT-82: cold-gear stiffness, resistance engaging second gear when cold, and synchronizer wear over time. The 2024 S650 version is the fourth-generation update and is better than what shipped in early S550 models, but it remains a step below the Tremec TR-3160 in the Dark Horse. An early fluid change at 5,000 to 10,000 miles is a strong community recommendation for any newly acquired S650 manual.

Campaign 24V394000 applies to certain manual-transmission 2024 Mustangs. The clutch hydraulic line may sit too close to the exhaust and melt, which can prevent the clutch from disengaging. Confirm completion on any manual GT or Dark Horse covered by the campaign.

On automatic models, the 10R80 has a long history of calibration TSBs across the Ford lineup. Mild hesitation and gear-hunting in light-throttle city driving are within its normal operating range. Hard clunking during gear selection or delayed engagement from Park to Drive is not normal and warrants investigation.

Campaign 24V593000 covered a rear suspension knuckle casting defect in 2024 models built between May 10 and August 20, 2024. This affects GT, EcoBoost, and Dark Horse cars equally and involves loss of handling and steering control. Any 2024 S650 built in that window requires confirmed recall completion before purchase.

Repair cost reference:

• Rear knuckle recall (24V593000): No charge under Ford recall
• MT-82D4 transmission fluid change: $100-$150 parts and labor
• Brake booster replacement (if needed): $350-$600 parts and labor
• 10R80 calibration TSB (software): No charge under warranty

5.0L Coyote Gen 4 (Dark Horse)

The Dark Horse uses the same 5.0L Gen 4 block and heads as the GT. What Ford changed: forged connecting rods derived from the GT500 Predator engine family (the GT uses cast rods), a re-balanced crankshaft, revised camshaft profiles, updated fuel injectors, and a more aggressive ECU calibration. The result is 500 horsepower, a 7,500-rpm redline versus 7,000 in the GT, and an engine built to tolerate higher cylinder pressure at sustained high rpm.

The Dark Horse also ships with the Tremec TR-3160 six-speed manual as its base gearbox, the same transmission used in the Shelby GT350. It is in a different category from the MT-82D4: more precise, more durable under hard use, and without the MT-82's documented cold-synchro tendencies.

The most significant documented failure in the S650 Dark Horse community is the Edmunds long-term car at Buttonwillow Raceway. During a track session at sustained high rpm, the engine overheated and white smoke appeared from the exhaust. The root cause: factory spark plug gaps were set too wide for the Dark Horse calibration, causing misfires under high cylinder pressure. Unburned fuel entered the exhaust stream and ignited on the catalytic converter, which operates at 1,200 to 1,600 degrees Fahrenheit. The internal honeycomb substrate was destroyed; two oxygen sensors failed alongside it. Ford covered the repair under warranty: catalytic converter replacement, two O2 sensors, new spark plugs. The estimated out-of-pocket cost without warranty coverage: $5,000 to $6,000.

This is a manufacturing consistency issue, not a fundamental design flaw. The Edmunds car was repaired and continued in their fleet without recurrence. But for any used Dark Horse with track history, asking for documentation of spark plug replacement is not paranoia. It is due diligence.

A secondary track concern involves thermal management on automatic models. The Dark Horse's 10R80 routes transmission fluid through the engine cooling loop. Under sustained track use, coolant temperatures can climb to 220 to 240 degrees Fahrenheit, and the additional heat load from the transmission compounds the issue. The six-speed manual does not share this heat coupling and is the recommended choice for buyers who intend to track the car. Dark Horse owners on Track Mustangs Online report that a single bracket upgrade rerouting the transmission cooler circuit resolves the issue on automatic cars, but that is a modification, not a factory remedy.

Stock brake fluid (DOT 4) on all S650 trims boils on a road course, producing pedal fade. Any Dark Horse with track history should have a verified flush to Castrol SRF or Motul RBF 660. If the maintenance records show only standard coolant changes and oil changes and the brake fluid was never upgraded, treat that as a sign the car may not have been tracked hard enough to reveal the issue, or that it was and the buyer should inspect catalytic converters and rotors carefully before purchase.

Fault codes to look for in the OBD history: P0300/P0302/P0308 (random misfire and cylinder-specific misfires on 2 and 8) were documented on early manual Dark Horse cars. If a pre-purchase scan shows misfire codes in the history, confirm whether spark plugs have been replaced and whether the dealer inspected the catalytic converters.

Repair cost reference:

• Spark plug replacement (8-plug V8): $100-$150 parts, $100-$150 labor
• Catalytic converter replacement (pair, if damaged): $2,500-$3,500 parts and labor
• Brake fluid flush to racing spec: $80-$150
• Tremec TR-3160 fluid service: $100-$150 parts, two hours labor

Trim Levels

GT Performance Pack: Available on GT and GT Premium. Adds MagneRide active dampers, Brembo 6-piston front calipers, 19x9.5-inch front and 19x10.5-inch rear wheels with Pirelli P Zero PZ4 summer tires, revised front splitter, and EPAS tuning. This is the one option that transforms the GT from a cruiser into a legitimate canyon car. Seek it out for any performance-focused purchase; the Brembo brakes and wider tire footprint justify the premium on their own.

EcoBoost High Performance Package (2024 only, discontinued for 2025): Adds a Torsen limited-slip differential (the base EcoBoost has an open differential), Brembo brakes front and rear, 255/40 ZR19 summer tires, heavier front springs, larger rear sway bar, an electric parking brake, and unique chassis and EPAS tuning. This was dropped entirely for 2025 with no replacement. A 2024 EcoBoost HPP is the only way to buy a factory Torsen and Brembo combination on the four-cylinder car, full stop.

Dark Horse Handling Package (optional at purchase): Pirelli P Zero Trofeo RS rubber in 305/30 ZR19 front and 325/30 ZR19 rear (the same tire specification as the Pagani Utopia), a carbon fiber rear spoiler, larger front splitter, front subframe reinforcement brace, and recalibrated dampers. These tires carry a treadwear rating of 100. Replacement cost is $500 to $600 per tire. Street life is roughly six to nine months in normal use. Budget $2,000 to $2,400 per replacement cycle before buying any Dark Horse with Handling Package rubber at or near end of life.

Convertible availability: The convertible body style is offered on EcoBoost, EcoBoost Premium, GT, and GT Premium only. The Dark Horse is fastback exclusively.

Which Year Should You Buy?

2024 early build (before May 2024): Lowest used prices in the generation. Higher probability of fender liner holes that allow road debris past the inner fender. Panel alignment complaints, particularly the driver-side headlight-to-bumper gap, are more common on first-year builds. The EcoBoost HPP is available here and not on 2025. Verify campaigns 24V220000 and 24V394000 if the car has the 2.3L or a manual.

2024 May-August 2024 build: The highest-scrutiny window. Both the rear knuckle recall (24V593000) and the IPC black-screen recall (24V802000) applied to this window. Many of these cars sat at dealerships for months under a delivery hold while Ford developed the IPC software fix. Verify both recalls are stamped complete and check battery health: extended storage at a dealer can deplete a battery to the point of reduced capacity.

2024 post-August 2024 build: The practical sweet spot of the 2024 model year. The recall exposure from the May-August window is behind it, fender liner holes appear corrected in production, and build consistency improved. The driver-side headlight gap remains a design-level misalignment on all S650s, but the broader panel quality is better on late 2024 production.

2025: Fewer quality complaints overall. No EcoBoost HPP. The 60th Anniversary Package is a cosmetic option for GT Premium buyers. The BCM water intrusion recall (25C43) still applies to 2025 cars; the wiper recall (26V418) covers all 2024 through 2026 production and has no available remedy as of July 2026. The inability to fix the wiper issue today is a negotiating point on any S650 purchase, not a reason to walk away.

Pre-Purchase Inspection Checklist

Before you see the car: Run the VIN through nhtsa.gov/recalls or /tools/recall-lookup. You are specifically looking for open status on: 25C43 (BCM water intrusion, 105,441 vehicles), 24S49 (rear knuckle casting, 2024 May-August builds), 24C35/24V802000 (IPC black screen, 2024 May-August builds), and 26V418 (wiper, currently no remedy). Any open recall besides 26V418 is a dealer obligation to repair and a negotiating point.

Exterior: Stand at the front-left corner and examine the gap between the driver-side headlight and the bumper. A wider-than-spec gap is present on nearly all S650s and is a design-level issue. It is cosmetic. What you are actually checking for is evidence of a bumper replacement that produced a suspiciously tight gap. Check hood-to-fender gaps on both sides for symmetry: meaningful asymmetry beyond the headlight gap indicates prior collision damage or unadjusted factory delivery. Inspect front fender liners by looking behind each wheel: factory-cut holes on pre-May 2024 builds should have been plugged, but verify.

Electronics: Cold-start the car and confirm the instrument cluster illuminates fully and immediately. A black or partial screen at startup is the IPC recall symptom. Test all four windows. Check the wireless charging pad, a documented early failure point on S650 production. Run through the active safety system status menu and confirm no warning codes are present. Test SYNC Bluetooth pairing and confirm SYNC software version is current.

Transmission: On a manual GT, work through all six gears deliberately. Resistance in second gear when cold is at the edge of MT-82D4 tolerance; grinding is not. On a Dark Horse with the Tremec TR-3160, any crunching is abnormal. On the 10R80, drive slowly in city-speed traffic and check for hesitation or gear hunting: mild hunting is within calibration tolerance; hard clunking when selecting Drive or Reverse is not.

Dark Horse track assessment: Request all maintenance records. Look specifically for documentation of spark plug replacement or catalytic converter inspection. Shake the car gently and listen for a rattling sound from beneath the rear of the car: internal substrate destruction in the catalytic converter sounds like loose gravel in a tin can. Inspect brake pad thickness on all four corners. Check rotors for deep radial scoring. Verify the condition of brake fluid by smell at the reservoir cap: brake fluid that smells burnt was likely boiled during track use.

BCM and water intrusion: Even if recall 25C43 is stamped complete, ask a PPI mechanic to note the condition of the cowl and lower windshield body seam sealant. Cars that sat unrepaired for extended periods before the recall was issued may have residual moisture corrosion on BCM connector pins.

Running Costs

The EcoBoost and GT carry nearly identical annual insurance premiums at the national average, approximately $2 per month apart. The Dark Horse commands roughly $50 per month more than the GT, reflecting its higher insured value and performance classification. Rates for drivers under 25 can reach two to three times the figures above on any trim.

Annual maintenance outside of tires and insurance runs $400 to $600 across all three variants for a street-driven car. The Dark Horse's cost premium is almost entirely tire-driven if the car carries the Handling Package: Trofeo RS replacement cycles add $1,000 to $1,200 per year compared to conventional performance street rubber.

Ford's dealer maintenance plan covers six years and 75,000 miles for approximately $1,975. For a used car outside the original sale, independent shops are substantially cheaper for routine service. Manual transmission fluid changes are a strong early investment on any S650 manual: the factory fill in both the MT-82D4 and the TR-3160 benefits from replacement at 5,000 to 10,000 miles.

FAQ

Is the Dark Horse a different engine from the GT? Same 5.0L Gen 4 Coyote block and heads. Different internals: forged connecting rods, re-balanced crankshaft, revised camshaft profiles, more aggressive ECU calibration. The practical result is 500 hp versus 480 hp, a 7,500-rpm redline versus 7,000, and meaningfully stronger resistance to high-cylinder-pressure fatigue. The GTD's 5.2L supercharged engine is a separate product in a different price class.

Should I avoid a 2024 because of the recalls? Not categorically. Most recalls are now remedied: the brake pedal, rear knuckle, IPC, and BCM water intrusion campaigns all have available fixes. The one open recall affecting all 2024-2026 S650s as of July 2026 is the wiper campaign (26V418), with parts not expected until approximately March 2027. Verify the specific VIN's recall status before purchase and treat any open campaign besides 26V418 as a condition of sale.

Is the EcoBoost HPP worth the used-market premium over a base EcoBoost? For a driver who stays on the street, probably not: the base car is already quick and the Torsen differential's advantage is situational. For a driver who runs autocross or enjoys canyon roads, the answer is yes. The Torsen, Brembos, suspension tuning, and unique chassis calibration produce a materially different driving character. It was discontinued after 2024 and cannot be added to a 2025 car at any price.

Which transmission should I choose? The six-speed manual is the better choice for driving engagement and for track use. The MT-82D4 in the GT is adequate but has known cold-shift characteristics; the Tremec TR-3160 in the Dark Horse is a class-above gearbox. The 10R80 automatic is faster in straight-line testing and competent in daily use. For any Dark Horse buyer who intends to track the car, the manual avoids the transmission-heat coupling issue that affects automatic cars during sustained sessions on a road course.

How do I know if a Dark Horse was tracked hard? Brake pad wear and rotor condition are the most visible indicators. Discolored or deeply scored rotors point to heavy use. The Edmunds spark plug failure means asking for documented plug replacement is reasonable on any used Dark Horse. Catalytic converter rattle (shake the car gently near the rear and listen for gravel sounds) is a direct indicator. Any Dark Horse sold with Handling Package Trofeo RS tires at or near the end of their life was driven enthusiastically at minimum; factor in the $2,000-plus replacement cost before agreeing to a price.

The Bottom Line

The 2024-2025 S650 is a genuinely capable sports car built around one of the most proven V8s on the market, with a recall record that demands homework before purchase. Run every VIN through /tools/recall-lookup, avoid the May-August 2024 build window unless you have complete paperwork, and treat any Dark Horse with undocumented track history as a project car until the PPI says otherwise. The GT Premium with Performance Pack in six-speed manual is the most complete package at a reasonable price. The 2024 EcoBoost HPP, if you can find a clean example, delivers more dynamic reward than its displacement suggests and cannot be replicated on 2025.

CarScout members can set alerts on specific S650 trims, model years, and price bands and track live market pricing at /market/ford/mustang.

Sources: Mustang7G forum threads on recalls 24S49, 25C43, and 24C35/24V802, S650 Coyote V8 engine discussions, and EcoBoost issue threads; Edmunds long-term Dark Horse track day report (Buttonwillow); Ford Authority reporting on EcoBoost HPP discontinuation, 2024-2026 wiper recall, and Gen 4 EcoBoost timing chain investigation; Cars.com 2024-2025 Mustang recall database; NHTSA recall report 25V546 (BCM water intrusion, 105,441 vehicles); autoevolution S650 launch team quality report; Consumer Reports April 2025 reliability survey results (Mustang7G); ValuePenguin and Insurance.com Mustang insurance data; CarEdge Mustang maintenance cost data; 7thMustang.com Dark Horse Handling Package tire cost discussions; Track Mustangs Online S650 track session reports; RepairPal recall data for 24V802000.