2021 Ford Mustang Review: Reliable Sports Coupe With Average Running Costs As It Ages

Alex Showalter
Dec 27, 2023

The 2021 Ford Mustang lasts around 200,000 miles, with some average transmission software and brake wear issues reported. At $23,975 to $81,950, it’s a good value for a fun sports car, which holds up well over time.

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likeFilled The Good
The handling is very responsive for its size, there are some strong engine choices and the stereo system is very easy to use.
dislikeFilled The Bad
There’s not a lot of room in the rear seats, the exhaust drones into the cabin and the suspension is firm.

Is the 2021 Ford Mustang a Good Used Car?

  • Overall Rating 8/10 – 2021 is a great year for the Ford Mustang since it offers some powerful engines and relatively low ownership costs. Owner reviews praise the responsive steering, nice cabin, and the exhaust noise.
  • Interior, Comfort & Cargo 8/10 – Interior materials are good for a sports car, the seats are supportive on curvy roads, but there’s not much room in the trunk.
  • Reliability 8/10 – There are no widespread complaints on the 2021 Mustang. Models from 20152016 have known engine problems, while 20172022 are more reliable.
  • Performance 9/10 – The standard four-cylinder engine is reasonably strong, while the GT500’s V8 is one of the strongest on the market.
  • Safety 8/10 – The 2021 Mustang is safe, earning a perfect 5-star rating in government crash tests. It comes standard with lane-keep assist and a rearview camera. Optional upgrades include parking sensors along with adaptive cruise control.
  • Gas Mileage 7/10 – Fuel economy is fine at up to 24 MPG, offering 372 miles of range from the 15.5 gallon tank. Gas costs are $39 higher than average, at $221 per month.
  • Value 8/10 – The 2021 Ford Mustang is close in price to other sports cars on the market with good depreciation rates, making it a great value.

What Do Critics Say About the Ford Mustang?

  • Consumer Reports says the 2021 Ford Mustang is an old-school tire smoking brute with good owner satisfaction scores as it ages.
  • Edmunds rates the Ford Mustang at 4.7/5, enjoying the modern conveniences in the cabin, but doesn’t like the long and heavy doors.
  • Kelley Blue Book users give the Mustang a 4.6/5, praising the relatively efficient engine choices for a sports car, but owners don’t like that it’s difficult to get in and out of.

What Common Problems Does the 2021 Ford Mustang Have?

Common problems found on the 2021 Ford Mustang include delayed gear changes, excessive brake wear, along with some stereo system issues. Overall, these problems are relatively minor for a sports car, leading to average repair costs as it ages.

Delayed gear changes in the automatic transmission model are the most widespread complaint from 2021 Mustang owners, showing up within the first 5,000 miles. There are software updates available for the transmission control module, which improves the speed. Most dealerships will install these for free, while others charge around $100 for labor.

Excessive brake wear is another problem mentioned by Mustang owners at around 15,000 miles. The front brake pads, in particular, tend to wear out very quickly, and have to be replaced. A new set of brake pads costs around $250, while rotors are an additional $550 if they have been damaged.

Stereo system issues also show up on some 2021 Ford Mustang models within the first 2,000 miles. Usually, the problem is just a frozen software issue and the stereo has to be restarted. There are also some software updates available for the stereo system, which most dealers will install for free during normal servicing.

There are three recalls on the 2021 Ford Mustang, which is similar to other coupes from the same year. The most serious recall is for the low brake fluid warning system. Ford will update the body control module software on affected models for free to fix the issue. The other two recalls are for air bags, which are common on all makes and models.

How Long Will the 2021 Ford Mustang Last?

A well-maintained 2021 Ford Mustang can last around 200,000 miles, which is shorter than the long-lasting Toyota Supra. Regular annual maintenance costs are similar to other sports cars, according to data provided by Repair Pal, at $659 per year.

As a used 2021 Mustang reaches 100,000 miles, and depending on the vehicle history report, owners should be prepared to replace the wheel bearings for $175, a boost sensor costing $300, along with the variable valve timing control solenoid, which costs $400.

How Is the Technology?

The standard entertainment technology is fairly basic, and only features a small 4.2-inch center display. Optional upgrades include an 8-inch touchscreen with Apple CarPlay and Android Auto, and a more powerful stereo system.

Standard safety technology is better than other cars with:

  • Automatic high-beam headlights
  • Rear cross-traffic alert
  • Lane-keep assist
  • Pedestrian detection
  • Rain-sensing windshield wipers
  • MyKey
  • Blind-spot monitoring
  • Lane-departure warning
  • Forward collision warning
  • Forward automatic emergency braking
  • Rearview camera

Optional upgrades include:

  • Adaptive cruise control
  • Rear parking sensors

Is the 2021 Ford Mustang a Good Value?

Yes, the 2021 Ford Mustang is a good value since it offers great performance and a nice interior for the money. The blue book fair purchase price ranges from $23,975 to $81,950, making it similar in price to a Dodge Challenger or Chevy Camaro. When new, the price range was $27,205 to $70,300. Depreciation is similar to other sports cars, losing about 5% of its current value per year.

What are the Different Models of the Ford Mustang?

There are six main models of the 2021 Ford Mustang offered, from the entry-level EcoBoost through to the very powerful GT500. All Mustang models come standard with rear-wheel drive, and there are no all-wheel drive versions offered.

Ford Mustang EcoBoost is the entry-level model with:

  • Six-speed manual or 10-speed automatic transmission
  • Cloth upholstery, leather-wrapped steering wheel
  • Proximity keyless entry
  • Ford’s MyKey safety system
  • FordPass Connect, SYNC infotainment system
  • Six-speaker stereo, two USB ports, Wi-Fi hot spot
  • Safety: Forward collision warning, pedestrian detection, automatic emergency braking, blind-spot monitoring, rear cross-traffic alert, lane-departure warning, lane-keep assist, automatic high-beam headlights, rain-sensing wipers
  • Optional: Dual-zone automatic climate control, power-adjustable front seats, remote start, rear parking sensors, selectable drive modes, adaptive cruise control, 8-inch touch screen, Android Auto, Apple CarPlay, satellite radio, nine-speaker stereo, navigation
  • High Performance package: 330 horsepower, active exhaust, limited-slip differential, upgraded brakes, sway bars, heavy-duty springs, larger radiator, retuned steering, unique styling
  • EcoBoost Handling package: Torsen differential, unique chassis tuning, summer-only tires, upgraded brakes, MagneRide suspension

Ford Mustang EcoBoost Premium is a step up, adding:

  • Synthetic leather upholstery
  • Heated and ventilated power-adjustable front seats
  • Dual-zone automatic climate control, rear parking sensors, selectable drive modes
  • Fog lights, aluminum pedals, ambient interior lighting
  • 8-inch touch-screen infotainment system with Android Auto, Apple CarPlay, satellite radio, nine-speaker stereo
  • Optional: 12-inch digital instrument cluster, heated steering wheel, adaptive cruise control, navigation, driver’s seat memory settings, universal garage door opener, 12-speaker Bang & Olufsen stereo, HD Radio, Recaro sport seats with genuine leather

Ford Mustang GT is a stronger version with:

  • Fastback only
  • Unique styling elements
  • GT Performance package: Summer-only tires, Brembo front brakes, heavy-duty springs, chassis bracing, larger radiator, retuned chassis and stability control, performance rear wing, Torsen differential, larger rear sway bar

Ford Mustang GT Premium is a small upgrade with:

  • Features of EcoBoost Premium
  • Genuine leather upholstery
  • Universal garage door opener

Ford Mustang Mach 1 adds ore features such as:

  • Standard features: Active exhaust, Brembo front brakes, heavy-duty springs, increased top speed, MagneRide, larger radiator, Torsen differential, larger rear sway bar, retuned chassis and steering, unique air intake, summer-only tires, performance rear spoiler, unique styling, 12-inch digital instrument cluster

Ford Mustang Shelby GT500 is the flagship model with:

  • Features: Race-inspired chassis and suspension, high-performance tires, aerodynamic body accents, Brembo brakes
  • Optional performance package: Recaro performance front seats, carbon-fiber rear spoiler, and wheels

Additional Features Across Models

  • Ford Co-Pilot360 suite: Collision mitigation, blind-spot monitoring, lane keeping assist, automatic high beams
  • Optional across models: Adaptive cruise control, navigation system, 12-speaker Bang & Olufsen audio system, heated steering wheel, styling packages (e.g., Pony package), Mach 1 Handling package (wider wheels and tires, adjustable strut mounts, special bumper and spoiler)
car
EcoBoost
310-330 HP 23-23 MPG
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EcoBoost Premium
310-330 HP 23-23 MPG
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car
Premium
266-346 HP 90 MPG
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California Route 1
290 HP 101 MPG
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What Engines Come In the Ford Mustang?

The Ford Mustang offers a range of engines catering to different performance needs:

  • 3L EcoBoost Inline-4: This turbocharged engine produces 310 horsepower and 350 lb.-ft of torque. It achieves a combined fuel economy of around 25 MPG. Paired with either a six-speed manual transmission or a 10-speed automatic transmission, it can accelerate from 0-60 MPH in 5.0 seconds.
  • 0L V8 (GT Models): The iconic 5.0-liter V8 engine in the GT models delivers 460 horsepower and 420 lb.-ft of torque. It gets a combined fuel economy of about 19 MPG. Available with a six-speed manual or a 10-speed automatic transmission, this engine propels the Mustang GT from 0-60 MPH in just under 4.0 seconds.
  • 0L V8 (Mach 1): In the Mach 1, the 5.0-liter V8 is tuned to produce 480 horsepower. This engine maintains the same torque as the GT at 420 lb.-ft and offers a similar fuel economy. The Mach 1, with its refined aerodynamics and handling, achieves a 0-60 MPH time slightly quicker than the GT.
  • 2L Supercharged V8 (Shelby GT500): The top-of-the-line Shelby GT500 boasts a supercharged 5.2-liter V8, unleashing 760 horsepower and 625 lb.-ft of torque. Its fuel economy drops to around 14 MPG combined. Equipped with a seven-speed dual-clutch automatic transmission, the GT500 storms from 0-60 MPH in about 3.3 seconds, making it the fastest Mustang in the lineup.

What Colors Does the Ford Mustang Come In?

How Comfortable Is the Ford Mustang?

The 2021 Ford Mustang strikes a fine balance between sports car thrills and everyday comfort, making it a compelling choice for those who want performance without sacrificing daily usability. Inside the cabin, the Mustang offers a driver-focused environment with well-bolstered seats that provide ample support during spirited driving while remaining comfortable for longer journeys. Standard cloth seats are agreeable for most, but the available leather upholstery in higher trims adds a touch of luxury and comfort. Front seats in premium trims come with heating and ventilation options, further enhancing comfort in varying weather conditions. The ergonomic layout of the cockpit makes sure that controls are within easy reach, and the driving position can be tailored to suit different preferences with adjustable seats and steering wheel.

Ride quality in the Mustang is generally firm, as expected in a sports car, yet it’s compliant enough to absorb most road imperfections, making it suitable for everyday driving. The optional MagneRide damping system, available in higher trims, further refines the ride by adapting to different road surfaces and driving styles, offering a smoother experience. Noise insulation is adequate, keeping most of the road and wind noise at bay, though the growl of the engine is a constant, pleasant reminder of the car’s performance capabilities. For rear passengers, the space is tighter, making it suitable for short trips rather than long hauls. Small but thoughtful features like keyless entry and an intuitive infotainment system contribute to the overall comfort and convenience of the Mustang.

How Much Storage Space Does the Ford Mustang Have?

The 2021 Ford Mustang offers a blend of performance and practicality in its storage options, though it leans more towards the former. The trunk space in the Mustang is modest, offering 13.5 cubic feet of room in the fastback models, which is relatively generous for a sports car. In contrast, the convertible models provide a bit less space, with around 11.4 cubic feet due to the additional mechanics for the convertible top. This space is enough to accommodate a couple of medium-sized suitcases or several grocery bags, making the Mustang a practical option for weekend getaways or short road trips. Golf enthusiasts would be pleased to know that the trunk can comfortably hold a couple of golf bags. However, larger items require more strategic packing due to the limited space and the trunk’s relatively narrow opening.

Inside the cabin, the Mustang offers a range of small-item storage solutions that enhance its practicality for daily driving. The door pockets are reasonably sized, capable of holding small items like water bottles and miscellaneous personal items. Additionally, the center console offers a modestly sized compartment, suitable for storing smartphones, wallets, and other small essentials. The glove box provides additional storage, though it’s more suited for documents and small items rather than bulky objects. Cupholders in the center console are conveniently placed, making sure drinks are easily accessible without interfering with the gear shifter. While the Mustang is undoubtedly designed with performance in mind, these storage features reflect an understanding of the day-to-day needs of drivers, balancing its sports car ethos with a nod to practicality.

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What Are the Differences Between Years?

The sixth generation of the Ford Mustang was introduced in 2015, and has had several styling updates since then.

2015: Fully redesigned for the sixth generation with new engines, technology, and updated styling.

2016: SYNC 3 stereo system offers more features, black roof offered on the EcoBoost and GT models.

2017: No big changes from earlier years.

2018: New front and rear bumpers with exterior styling changes, V6 engine discontinued, new four-cylinder and V8 engines offered, available adaptive suspension.

2019: Bullitt model re-launched, minor changes to the options.

2020: EcoBoost handling package offered, more power from the EcoBoost Engine, and FordPass connect is standard on all models.

2021: EcoBoost and GT models now feature Co-Pilot 360, Bullitt model removed from the lineup, and Mach 1 model introduced.

How Does the Ford Mustang Compare to the Competition?

The 2021 Ford Mustang is a great sports car since it offers a lot of the latest features while also having good reliability ratings as it ages.

The Chevrolet Camaro is another muscle car, which costs about $2,000 less. Passenger room is slightly better in the rear of the Camaro, while the Ford Mustang offers more responsive handling. We recommend the Ford Mustang, but both are very similar so it’s worth testing to see which you prefer.

The Dodge Challenger is a popular coupe, which is available for roughly $1,500 less. There are some stronger engine options on the Dodge Challenger, while the Ford Mustang offers better standard safety features. We recommend the Ford Mustang since it’s better on winding roads, but it’s worth trying both to see which fits into your life better.

Do Owners Recommend the Ford Mustang?

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avatar Alex Showalter
Alex is an automotive enthusiast with over 15 years of experience in the used car market. He brings a wealth of knowledge to Vehicle History as our Staff Writer and has written hundreds of used car reviews helping buyers make informed purchasing decisions. He is a member of the Automotive Press Association, and keeps up-to-date on the latest changes in the industry. Over the years, he has driven hundreds of cars, working on many of them. His mechanical experience evolved from modifying off-road trucks as a teen to focusing on automotive electrical systems as he got older. He now specializes in reviewing used cars as an automotive journalist. Some of his favorite brands are Toyota and BMW. The Toyota Land Cruiser is one of his favorite vehicles of all time since they’re built to last forever and can go anywhere. One of his current cars is a Lexus LX570, built on the same platform as the 200-series Land Cruiser, but it’s a better value in the used market.