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Rankings & Research

The 2018 BMW 4-Series ranking is based on its score within the 2018 Luxury Small Cars category. Currently the BMW 4-Series has a score of 8.2 out of 10 which is based on our evaluation of 31 pieces of research and data elements using various sources.

8.2

Overall

Scorecard

Overall: 8.2
Critics' Rating: 8.7
Performance: 8.8
Interior: 8.0
Total Cost of Ownership: 7.5
Safety:
This model has never been fully tested for safety. Its overall score is being calculated without safety.
N/A
Reliability:
J.D. Power Ratings Logo

2018 BMW 4-Series Review

The 2018 BMW 4 Series masterfully blends comfort and luxury with dynamic performance. It places among the best in our luxury small car rankings.

Pros & Cons

  • Balanced, agile handling
  • Powerful engines
  • Above-average cargo space in coupe and Gran Coupe
  • Expensive estimates for maintenance and repairs
  • Hard-to-access rear seat in two-door models

New for 2018

  • Refreshed styling
  • Suspension system enhancements
  • Updates to the infotainment system
  • Pedestrian detection became available

Is the 2018 BMW 4 Series a Good Used Car?

Yes, the 2018 BMW 4 Series is a superb luxury small car. It is available as a four-door Gran Coupe hatchback, a two-door coupe, and a convertible.

The 2018 4 Series stands out in many ways:

  • Engines are lively and responsive
  • Handling is athletic, balanced, and refined
  • Appealing assortment of tech and safety features
  • Lots of luggage space in Gran Coupe and coupe body styles

It also has some shortcomings:

  • Estimated maintenance and repair costs are among the highest in the class
  • Adults won't enjoy crawling into the back seat of two-door models
Why You Can Trust Us

Our goal is to make shopping for your next car as easy as possible. You'll find everything you need to know about the BMW 4 Series in our comprehensive review. It combines concrete data (like fuel economy estimates, horsepower specs, and cargo space dimensions) with 31 professional BMW 4 Series reviews.

At U.S. News & World Report, we rank the Best Jobs, Best Hospitals, and Best Colleges to guide readers through some of life’s most complicated decisions. We've been ranking and reviewing the Best Cars since 2007, backed by a team with more than 75 years of combined automotive experience. To keep favoritism out of the picture, we maintain a separate advertising team and decline expensive gifts and trips from car companies.

How Much Is the 2018 BMW 4 Series?

Based on listings for the 2018 BMW 4 Series on our site, the average price is $33,800. Prices range from $25,000 to $48,500 and vary depending on the vehicle’s condition, mileage, features, and location.

See the Best Used Car Deals »

How Much Does the 2018 BMW 4 Series Cost to Own?

The 2018 4 Series' five-year costs for gas, insurance, repairs, and maintenance are projected to be about $33,070, or $6,614 per year. That’s above average for a luxury small car.

Is It Better to Buy a Used or New 4 Series?

For 2019, the new BMW 4 Series comes standard with Apple CarPlay, navigation, and parking sensors. Previously, BMW offered these as optional features, so you might be able to find a used model with this technology. There are no other major changes for 2019, so we recommend searching for a used 2018 4 Series with the features you want. It will likely cost you less than a 2019 model will.

Read about the new BMW 4 Series »

The 2018 4 Series belongs to a generation that kicked off for 2014. The Gran Coupe body style and the high-performance M4 model joined the lineup for 2015. For 2017, the 428i was replaced by the 430i, and the 435i became the 440i, with increased horsepower accompanying the name changes. This was also the first year features such as wireless phone charging and a Wi-Fi hot spot became available. For 2018, BMW gave the 4 Series a style refresh, an improved suspension system, and an updated infotainment system. For the best value, we recommend searching for the earliest model year that's outfitted with the features and powertrain you desire. 

Compare the 2017, 2018, and 2019 4 Series »

See the Best New Car Deals »

See the Best New Car Lease Deals »

How Reliable Is the 2018 BMW 4 Series?

The 2018 BMW 4 Series has an above-average predicted reliability rating of four out of five from J.D. Power.

Read more about 4 Series reliability »

2018 BMW 4 Series Recalls

At the time of writing, there is one recall for the 2018 BMW 4 Series:

  • Seat belt locking mechanism may not lock properly, resulting in a failure to properly restrain a traveler in a collision

Before buying any used vehicle, make sure all recalls have been addressed.

See more information on BMW 4 Series safety recalls »

Which Used BMW 4 Series Trim Is Right for Me?

The 2018 BMW 4 Series comes in three trims: 430i, 440i, and M4. The principal differences among them are the engine and the horsepower rating, as interior features and available packages are mostly similar across the lineup.

The 430i and 440i are available in three body styles: Gran Coupe, coupe, and convertible. The four-door Gran Coupe is a hatchback with five seats, and it’s usually the least expensive body type. The 4 Series coupe and convertible models are two-door cars with four seats, and they are the only available body styles for the M4 trim.

Every powertrain is enjoyable, even the one in the base 430i. To find the right 4 Series for you, we recommend selecting the trim and collection of options that best fits your desires and budget.

  • BMW 430i: The 430i comes with a 248-horsepower turbocharged four-cylinder engine. Standard features include synthetic leather seats, power-adjustable front sport seats, dual-zone automatic climate control, a rearview camera, and a moonroof. The standard iDrive infotainment system comes with a 6.5-inch display screen, a nine-speaker audio system, Bluetooth, HD Radio, and a USB port.
  • BMW 440i: Under the hood of the 440i is a 320-horsepower turbocharged six-cylinder engine. This trim has the same standard features as the 430i.
  • BMW 4 Series M4: The range-topping M4 has a 425-horsepower six-cylinder engine. The available Competition package increases horsepower to 444 and upgrades steering, differential, and suspension settings.

Several other packages are available for all three trims. The Premium package adds navigation and heated front seats. The Luxury package includes a Harman Kardon audio system and some styling upgrades. People who enjoy spirited driving will like the M Sport package, which includes adaptive suspension, M Sport brakes, and sport steering. Features such as a heated steering wheel, wireless device charging, and adaptive cruise control are available individually.

See 2018 BMW 4 Series trims and specs »

What Does BMW’s Certified Pre-Owned Warranty Cover?

The BMW CPO program is available on vehicles with more than 300 miles but less than 60,000 miles on the odometer. Eligibility is determined by the vehicle’s initial sale’s date. The program covers buyers for one year with unlimited mileage after the expiration of the four-year/50,000-mile new-vehicle limited warranty for passenger cars and SUVs for a maximum of five years of coverage. Each BMW undergoes a road test and inspection before earning CPO status. Additional benefits like towing and roadside assistance may be available. Restrictions apply on transferring certified-pre-owned coverage to subsequent owners. Read the BMW warranty page carefully.

This level of coverage is about average for a luxury carmaker, according to our analysis. You may also want to consider buying a certified pre-owned Lexus or Jaguar, which offer more comprehensive CPO coverage.

See the best CPO programs »

Read more about the BMW certified pre-owned program »

How Safe Is the 4 Series?

Neither the Insurance Institute for Highway Safety nor the National Highway Traffic Safety Administration has crash tested this BMW. That's common for a luxury vehicle.

Standard advanced safety features:

  • rearview camera

Available advanced safety features:

  • forward collision warning
  • automatic emergency braking
  • pedestrian detection
  • head-up display
  • speed limit information
  • adaptive cruise control
  • side- and top-view cameras
  • front and rear parking sensors
  • adaptive headlights
  • automatic high-beam headlights
  • parallel parking assist
  • lane departure warning
  • blind spot monitoring

See 4 Series safety scores »

2018 BMW 4 Series Versus the Competition

Which Is Better: 2018 BMW 4 Series or 2018 Mercedes-Benz C-Class?

The BMW 4 Series places much higher than the 2018 Mercedes-Benz C-Class in our luxury small car rankings. The Mercedes has a nice selection of polished engines and a beautifully crafted interior. It's also available as a plug-in hybrid. However, it isn't as much fun to drive as the BMW, and it has a much lower predicted reliability rating. Overall, the BMW is better.

Which Is Better: 2018 BMW 4 Series or 2018 Audi A5?

The 2018 Audi A5 and BMW 4 Series are near equals when it comes to performance. Inside, the A5 is more opulent, and it comes with more standard features. Additionally, professional reviewers frequently name Audi's infotainment system and available Virtual Cockpit driver's display as benchmarks. Used A5 models tend to cost more than the 4 Series, however, and they have a slightly lower predicted reliability rating. Each is a good choice and earns our nod of approval.

Compare the 4 Series, C-Class, and A5 »

2018 4 Series Performance

How Does the 2018 BMW 4 Series Drive?

The M4 is a delightful monster, with a 425- to 444-horsepower engine that propels this car to 60 mph in about four seconds. It tends to cost quite a bit more than the rest of the lineup, but the good news is that even the smaller 4 Series engines are lively and gratifying.

On the highway, the 4 Series feels incredibly composed and balanced. The ride quality is smooth, with four-door models leaning more toward comfort and two-door models feeling a bit firmer. Rear-wheel drive is standard, and some models are available with BMW's xDrive all-wheel-drive system.

  • Base engine: turbocharged 2.0-liter four-cylinder with 248 horsepower and 258 pound-feet of torque (430i)
  • Available engines:
    • turbocharged 3.0-liter inline-six-cylinder with 320 horsepower and 330 pound-feet of torque (440i)
    • turbocharged 3.0-liter inline-six-cylinder with 425 horsepower and 406 pound-feet of torque (M4)
  • Drivetrain: standard rear-wheel drive; available all-wheel drive (430i and 440i)
  • Transmission: standard eight-speed automatic (430i and 440i); available six-speed manual (430i coupe 440i coupe); standard six-speed manual (M4); available seven-speed dual-clutch automatic (M4)
Does the 2018 BMW 4 Series Get Good Gas Mileage?

The BMW 430i gets average fuel economy for its class, and there's no significant difference between rear-wheel and all-wheel-drive models. For the typical driver, the 440i costs an additional $150 to fuel each year.

  • 2.0-liter four-cylinder, RWD: 24/34 mpg city/highway
  • 3.0-liter six-cylinder (440i), RWD: 21/32 mpg
  • 3.0-liter six-cylinder (M4), RWD: 17/25 mpg

Read more about 4 Series performance »

2018 4 Series Interior

How Many People Does the 2018 4 Series Seat?

The 4 Series Gran Coupe is a four-door hatchback that seats five people. The 4 Series convertible and coupe are two-door vehicles with four seats. The standard front sport seats are nicely bolstered and comfortable, with ample power adjustments. Cushier front seats are available with the Luxury package. The rear seat is large enough for most adults, though this area feels tight in coupe and convertible body styles, and accessing the rear seat in two-door models can be challenging.

Standard seating features:

  • synthetic upholstery
  • power-adjustable front sport seats

Available seating features:

  • genuine leather upholstery
  • heated front seats
  • heated steering wheel
How Many Child Car Seats Fit in the 2018 BMW 4 Series?

The 2018 4 Series has two complete sets of LATCH car-seat connectors on the rear outboard seats and an upper tether on the rear middle seat.

2018 BMW 4 Series Features

The 4 Series comes with a sleek infotainment interface. The system is good for the most part, though some menus are more complicated than they should be.  

  • Standard infotainment features: iDrive infotainment system with a 6.5-inch display, a nine-speaker audio system, Bluetooth, HD Radio, and a USB port
  • Available infotainment features: Apple CarPlay, a 16-speaker Harman Kardon surround-sound system, satellite radio, wireless phone charging, a Wi-Fi hot spot, and an upgraded infotainment system with an 8.8-inch screen, a touchpad controller, and navigation
  • Additional standard features: dual-zone automatic climate control and a moonroof
  • Other available features: proximity keyless entry

See 2018 BMW 4 Series specs »

Read more about 4 Series interior »

2018 BMW 4 Series Dimensions

BMW 4 Series Cargo Space

The 4 Series Gran Coupe has lots of cargo space for a luxury small car, with 17 cubic feet behind the rear seats and 45.9 cubic feet with the rear seats folded. The coupe has a 15.7-cubic-foot trunk, which is also above average for the class. The convertible has 13.1 cubic feet of cargo space with the top up and 7.8 cubic feet when the top is down.

These cargo dimensions are for comparative purposes. There is no substitute for visually examining the storage area in any car you’re considering.

2018 BMW 4 Series Length and Weight
  • Length: 15 feet, 2.7 inches to 15 feet, 3.9 inches
  • Curb weight: 3,541 to 4,328 pounds

Where Was the 2018 BMW 4 Series Built?

BMW built the 2018 4 Series in Germany.

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