2020 Ford Mustang vs 2021 BMW 4 Series
Overview | |
MSRP$26,670 | MSRP$45,600 |
Listings803 | Listings213 |
Ratings & Reviews | |
User Reviews | User Reviews |
Expert reviews8.2 out of 10 | Expert reviews6.8 out of 10 |
Pros
Cons
| Pros
Cons
|
2020 Ford Mustang Reviews SummaryFord is in the midst of a revolutionary transformation away from cars, toward trucks and SUVs, and away from internal combustion engines and toward electrification. The 2020 Ford Mustang burns gasoline and rubber at the precipice, on the eve of its own conversion from an individual model to a performance sub-brand as the automaker prepares to roll out the electric Mustang Mach-E SUV. While Ford looks to the future of the Mustang, we take a nostalgic look back at the design and performance that helps the nameplate to endure, perfectly encapsulated in the Mustang Bullitt special edition. | |
2021 BMW 4 Series Reviews SummaryThe 2021 BMW 4 Series represents how, for better or worse, BMW has changed. The 4 Series name has been around since the 2014 model year when it was introduced for the former 3 Series coupe and convertible. Earlier two-door 3 Series models built BMW’s reputation, with excellent handling, smooth yet powerful engines, and understated styling. The redesigned second-generation 4 Series departs dramatically from that template. It’s bigger and more luxurious, with garish styling and a greater reliance on technology for performance. The car’s rivals haven’t changed though. It still competes against the Audi A5, Mercedes-Benz C-Class, Lexus RC, and Infiniti Q60 for buyers willing to sacrifice a bit of practicality to make a fashion statement. As before, the 4 Series is available in coupe and convertible body styles—the latter with a soft-top instead of the previous retractable hardtop. Both body styles are offered in four-cylinder 430i and six-cylinder M440i configurations, with high-performance M4 variants on the way. Rear-wheel drive is standard, with xDrive all-wheel drive optional (and mandatory on the M440i coupe). Our test car was a 430i xDrive coupe. | |
No video found | |
Popular Features & Specs | |
Engine2.3L 310 hp I4 | Engine2.0L 255 hp I4 |
Drive TrainRWD | Drive TrainRWD |
Seating Capacity4 | Seating Capacity4 |
Horsepower310 hp @ 5500 rpm | Horsepower255 hp @ 5000 rpm |
MPG City21 | MPG City26 |
MPG Highway30 | MPG Highway34 |
Engine | |
Engine Name2.3L 310 hp I4 | Engine Name2.0L 255 hp I4 |
Torque350 lb-ft @ 3000 rpm | Torque294 lb-ft @ 1550 rpm |
Horsepower310 hp @ 5500 rpm | Horsepower255 hp @ 5000 rpm |
DrivetrainRWD | DrivetrainRWD |
Fuel Economy | |
MPG City21 | MPG City26 |
MPG Highway30 | MPG Highway34 |
Interior | |
Seating Capacity4 | Seating Capacity4 |
Key Features | |
Navigation System | Navigation SystemStandard |
Sunroof/Moonroof | Sunroof/MoonroofStandard |
Safety | |
Front Crash Overall5 | Front Crash Overall |
Side Crash Overall5 | Side Crash Overall |
Dimensions & Capacity | |
Cargo Space13.5 cu ft | Cargo Space15.5 cu ft |
Curb Weight3515 lbs | Curb Weight3578 lbs |
Height54.3 in | Height54.6 in |
Length188.5 in | Length187.9 in |
Width81.9 in | Width81.9 in |
Wheelbase107.1 in | Wheelbase112.2 in |
Maximum Payload | Maximum Payload714 lbs |
Number of doors2 | Number of doors2 |
Overview | ||
MSRP | $26,670 | $45,600 |
Listings | ||
Ratings & Reviews | ||
User reviews | ||
Expert reviews | 8.2 out of 10Read full review | 6.8 out of 10Read full review |
Pros & cons | Pros
Cons
| Pros
Cons
|
Summary | Ford is in the midst of a revolutionary transformation away from cars, toward trucks and SUVs, and away from internal combustion engines and toward electrification. The 2020 Ford Mustang burns gasoline and rubber at the precipice, on the eve of its own conversion from an individual model to a performance sub-brand as the automaker prepares to roll out the electric Mustang Mach-E SUV. While Ford looks to the future of the Mustang, we take a nostalgic look back at the design and performance that helps the nameplate to endure, perfectly encapsulated in the Mustang Bullitt special edition. | The 2021 BMW 4 Series represents how, for better or worse, BMW has changed. The 4 Series name has been around since the 2014 model year when it was introduced for the former 3 Series coupe and convertible. Earlier two-door 3 Series models built BMW’s reputation, with excellent handling, smooth yet powerful engines, and understated styling. The redesigned second-generation 4 Series departs dramatically from that template. It’s bigger and more luxurious, with garish styling and a greater reliance on technology for performance. The car’s rivals haven’t changed though. It still competes against the Audi A5, Mercedes-Benz C-Class, Lexus RC, and Infiniti Q60 for buyers willing to sacrifice a bit of practicality to make a fashion statement. As before, the 4 Series is available in coupe and convertible body styles—the latter with a soft-top instead of the previous retractable hardtop. Both body styles are offered in four-cylinder 430i and six-cylinder M440i configurations, with high-performance M4 variants on the way. Rear-wheel drive is standard, with xDrive all-wheel drive optional (and mandatory on the M440i coupe). Our test car was a 430i xDrive coupe. |
Video | No video found | |
Popular Features & Specs | ||
Engine | 2.3L 310 hp I4 | 2.0L 255 hp I4 |
Drive Train | RWD | RWD |
Seating Capacity | 4 | 4 |
Horsepower | 310 hp @ 5500 rpm | 255 hp @ 5000 rpm |
MPG City | 21 | 26 |
MPG Highway | 30 | 34 |
Engine | ||
Engine Name | 2.3L 310 hp I4 | 2.0L 255 hp I4 |
Torque | 350 lb-ft @ 3000 rpm | 294 lb-ft @ 1550 rpm |
Horsepower | 310 hp @ 5500 rpm | 255 hp @ 5000 rpm |
Drivetrain | RWD | RWD |
Fuel Economy | ||
MPG City | 21 | 26 |
MPG Highway | 30 | 34 |
Interior | ||
Seating Capacity | 4 | 4 |
Key Features | ||
Navigation System | Standard | |
Sunroof/Moonroof | Standard | |
Safety | ||
Front Crash Overall | 5 | |
Side Crash Overall | 5 | |
Dimensions & Capacity | ||
Cargo Space | 13.5 cu ft | 15.5 cu ft |
Curb Weight | 3515 lbs | 3578 lbs |
Height | 54.3 in | 54.6 in |
Length | 188.5 in | 187.9 in |
Width | 81.9 in | 81.9 in |
Wheelbase | 107.1 in | 112.2 in |
Maximum Payload | 714 lbs | |
Number of doors | 2 | 2 |
The 2020 Ford Mustang Bullitt paid homage to its cinematic roots, drawing inspiration from the iconic 1968 Mustang GT fastback driven by Steve McQueen in the film "Bullitt." This special edition Mustang was painted in the same Dark Highland Green as the movie car, exuding a clean and classic aesthetic with subtle chrome accents and retro-style wheels. Inside, the Bullitt featured unique touches like green stitching on the leather upholstery and a white cue-ball shifter knob, creating a nostalgic yet modern driving environment. Despite its high price tag, the Mustang Bullitt was considered a bargain compared to the original movie car, which fetched millions at auction.
In contrast, the 2021 BMW 4 Series coupe sparked conversations with its bold new design, particularly the oversized twin-kidney grille. While opinions on its attractiveness varied, the rest of the car maintained BMW's signature styling with standard LED lights and a familiar silhouette. The 4 Series boasted improved aerodynamics, with a drag coefficient of 0.25, thanks to features like Air Curtain intakes. Sharing a platform with the 3 Series sedan, the 4 Series was slightly larger in dimensions, offering a composed and spacious interior. The cabin was designed with practicality in mind, featuring a logically laid-out cockpit and excellent outward visibility.
















The 2020 Ford Mustang offered a wide range of performance options, from the 310-horsepower EcoBoost Fastback to the 760-horsepower Shelby GT500. The Mustang Bullitt, based on the Mustang GT, delivered 480 horsepower and 420 lb-ft of torque, thanks to enhancements like an intake manifold from the Shelby GT350. It featured a six-speed manual transmission, structural bracing, and Brembo brakes, providing a thrilling driving experience reminiscent of the original movie car. Fuel economy varied across models, with the Bullitt achieving 14/23/17 mpg. The Mustang's performance was characterized by its raw power and refined handling, making it a standout in the muscle car segment.
The 2021 BMW 4 Series offered two powertrains: a 255-horsepower 2.0-liter turbocharged four-cylinder in the 430i and a 382-horsepower 3.0-liter turbocharged inline-six in the M440i. The 4 Series was quick, with the 430i xDrive reaching 60 mph in 5.3 seconds and the M440i xDrive in 4.3 seconds. However, the driving experience was hampered by a hesitant transmission and vague steering. Despite its impressive chassis and grip, the 4 Series lacked the engaging feel expected from a performance coupe. The engine's sound and the suspension's settings did not enhance the driving experience, leaving it less exciting than anticipated.
The 2020 Ford Mustang prioritized style and performance over practicality, with a rear seat suitable only for small passengers and limited storage space. However, it comfortably accommodated two adults and offered a 13.5 cubic-foot trunk, making it viable for road trips. Standard black leather seats provided power adjustment, heating, and ventilation, while optional Recaro seats offered better bolstering for spirited driving. The Mustang's interior was designed for comfort, with a heated steering wheel and thoughtful features for city driving.
The 2021 BMW 4 Series excelled in practicality for a coupe, offering more front headroom and trunk space than many competitors. While rear seats were best for occasional use, the front-seat space was ample, making it a comfortable choice for drivers who didn't need a sedan's extra space. The cockpit was well-organized, with an integrated infotainment touchscreen and convenient storage solutions. The 4 Series provided a pleasant driving environment, with excellent visibility and a thoughtfully designed interior.
The 2020 Ford Mustang shone in performance technology, offering customizable steering effort, exhaust modes, and driving modes. Track Apps allowed drivers to monitor performance metrics, while the 12-inch digital instrumentation cluster provided a modern interface. The Sync 3 infotainment system, though aging, included Android Auto and Apple CarPlay, with a user-friendly interface and a premium sound system. Separate stereo and climate controls enhanced usability.
The 2021 BMW 4 Series featured the iDrive 7 infotainment system, with an optional Live Cockpit Professional setup offering a 10.25-inch touchscreen and a 12.3-inch digital instrument cluster. The iDrive rotary controller facilitated easy navigation, complemented by voice control and touchscreen options. Standard features included wireless Apple CarPlay and Android Auto, with available upgrades like a head-up display and wireless charging. The system was praised for its graphics and intuitive design.
The 2020 Ford Mustang Bullitt lacked advanced driver-assistance features, appealing to purists. It included a reversing camera, MyKey technology, and optional blind-spot monitoring. The Mustang received good crash-test ratings, with five stars from NHTSA and mostly top ratings from IIHS.
The 2021 BMW 4 Series came with standard driver-assist features like lane-departure warning, forward-collision warning, and blind-spot monitoring. Adaptive cruise control was available through an optional package, offering advanced capabilities. Crash-test ratings were not yet available for the 2021 model.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2020 Ford Mustang is 8.2 out of 10, while the 2021 BMW 4 Series scores 6.8 out of 10. Based on these ratings, the 2020 Ford Mustang is the recommended choice, offering a more engaging driving experience and better value for performance enthusiasts.
Choose the 2020 Ford Mustang if:
- You value raw power and a thrilling driving experience.
- Nostalgic styling and unique design elements appeal to you.
- You prefer a manual transmission for a more engaging drive.
Choose the 2021 BMW 4 Series if:
- You prioritize a comfortable and practical interior for a coupe.
- Advanced technology and infotainment features are important to you.
- You seek a refined driving experience with modern safety features.
CarGurus highlights

According to CarGurus experts, the overall rating for the 2020 Ford Mustang is 8.2 out of 10, while the 2021 BMW 4 Series scores 6.8 out of 10. Based on these ratings, the 2020 Ford Mustang is the recommended choice, offering a more engaging driving experience and better value for performance enthusiasts.
Choose the 2020 Ford Mustang if:
Shop Now- You value raw power and a thrilling driving experience.
- Nostalgic styling and unique design elements appeal to you.
- You prefer a manual transmission for a more engaging drive.
Choose the 2021 BMW 4 Series if:
Shop Now- You prioritize a comfortable and practical interior for a coupe.
- Advanced technology and infotainment features are important to you.
- You seek a refined driving experience with modern safety features.

By: CarGurus + AI
At CarGurus, our team of experienced automotive writers remain at the heart of our content operation, conducting hands-on car tests and writing insightful guides that are backed by years of industry experience. To complement this, we are harnessing AI to make our content offering more diverse and more helpful to shoppers than ever. To achieve this, our AI systems are based exclusively on CarGurus content, ratings and data, so that what we produce is both unique to CarGurus, and uniquely helpful to car shoppers.








































