2020 BMW 4 Series Gran Coupe vs. 2019 Buick Regal Sportback

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/19

The 4 Series Gran Coupe has standard Active Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Headrests system moves the headrests forward to prevent neck and spine injuries. The Regal Sportback doesn’t offer a whiplash protection system.

The 4 Series Gran Coupe offers an optional Side and Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The Regal Sportback only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the 4 Series Gran Coupe and the Regal Sportback have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras and available all wheel drive.

Warranty

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The 4 Series Gran Coupe’s corrosion warranty is 6 years longer than the Regal Sportback’s (12 vs. 6 years).

BMW pays for scheduled maintenance on the 4 Series Gran Coupe for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Buick only pays for the first scheduled maintenance visit on the Regal Sportback.

Reliability

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The battery on the 4 Series Gran Coupe is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the 4 Series Gran Coupe’s battery 20 to 30 degrees cooler, its life is increased by years. The Regal Sportback’s battery is in the hot engine compartment.

J.D. Power and Associates rated the 4 Series Gran Coupe first among compact premium cars in their 2018 Initial Quality Study. The Regal Sportback isn’t in the top three in its category.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Buick vehicles. J.D. Power ranks BMW 11th in initial quality, above the industry average. With 8 more problems per 100 vehicles, Buick is ranked 16th, below the industry average.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Buick vehicles. Consumer Reports ranks BMW 11 places higher in reliability than Buick.

Engine

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The 4 Series Gran Coupe has more powerful engines than the Regal Sportback:

Horsepower

Torque

440i Gran Coupe 3.0 turbo 6 cyl.

320 HP

330 lbs.-ft.

Regal Sportback 2.0 turbo 4 cyl.

250 HP

260 lbs.-ft.

Regal Sportback 2.0 turbo 4 cyl.

250 HP

295 lbs.-ft.

Regal Sportback GS 3.6 DOHC V6

310 HP

282 lbs.-ft.

Fuel Economy and Range

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/19

On the EPA test cycle the 4 Series Gran Coupe gets better fuel mileage than the Regal Sportback:

MPG

4 Series Gran Coupe

RWD

430i 2.0 turbo 4 cyl.

23 city/34 hwy

440i 3.0 turbo 6 cyl.

22 city/30 hwy

AWD

430i 2.0 turbo 4 cyl.

21 city/31 hwy

440i 3.0 turbo 6 cyl.

22 city/30 hwy

Regal Sportback

FWD

2.0 turbo 4 cyl.

22 city/32 hwy

AWD

2.0 turbo 4 cyl.

21 city/29 hwy

3.6 DOHC V6

19 city/27 hwy

Regenerative brakes improve the 4 Series Gran Coupe’s fuel efficiency by converting inertia back into energy instead of wasting it. The Regal Sportback doesn’t offer a regenerative braking system.

Brakes and Stopping

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The 4 Series Gran Coupe’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Regal Sportback are solid, not vented.

The 4 Series Gran Coupe stops shorter than the Regal Sportback:

4 Series

Regal

70 to 0 MPH

162 feet

164 feet

Car and Driver

Tires and Wheels

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The 4 Series Gran Coupe’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Regal Sportback’s standard 55 series tires. The 4 Series Gran Coupe’s optional 255/35R19 rear tires have a lower 35 series profile than the Regal Sportback Avenir/GS’ 40 series tires.

For better ride, handling and brake cooling the 4 Series Gran Coupe has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Regal Sportback.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 4 Series Gran Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Regal Sportback doesn’t offer run-flat tires.

Suspension and Handling

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The 4 Series Gran Coupe’s front to rear weight distribution is more even (50.1% to 49.9%) than the Regal Sportback’s (61.6% to 38.4%). This gives the 4 Series Gran Coupe more stable handling and braking.

The 430i Gran Coupe handles at .89 G’s, while the Regal Sportback GS pulls only .87 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the 4 Series Gran Coupe’s turning circle is 1.9 feet tighter than the Regal Sportback’s (37.1 feet vs. 39 feet). The 4 Series Gran Coupe xDrive’s turning circle is 2.3 feet tighter than the Regal Sportback’s (38.7 feet vs. 41 feet).

Chassis

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The 4 Series Gran Coupe is 10.2 inches shorter than the Regal Sportback, making the 4 Series Gran Coupe easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver, the interior of the 430i Gran Coupe xDrive is quieter than the Regal Sportback Essence:

4 Series

Regal Sportback

Full-Throttle

73 dB

75 dB

70 MPH Cruising

65 dB

70 dB

Passenger Space

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/19

The 4 Series Gran Coupe has 1.1 inches more front headroom and .1 inches more front legroom than the Regal Sportback.

Cargo Capacity

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A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the 4 Series Gran Coupe. The Regal Sportback doesn’t offer locking storage for small valuables.

To make loading and unloading groceries and cargo easier when your hands are full, the 4 Series Gran Coupe’s power liftgate can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Regal Sportback doesn’t offer a power or hands-free opening liftgate.

Servicing Ease

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The engine in the 4 Series Gran Coupe is mounted longitudinally (North-South), instead of sideways, as in the Regal Sportback. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.

Ergonomics

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The 4 Series Gran Coupe’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Regal Sportback’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the 4 Series Gran Coupe the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. The driver of the Regal Sportback can only operate the windows from inside the vehicle, with the ignition on.

The 4 Series Gran Coupe’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Regal Sportback’s manually variable intermittent wipers have to be constantly adjusted.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The 4 Series Gran Coupe offers available headlight washers to keep headlight output high. The Regal Sportback doesn’t offer headlight washers.

While driving with high beams on, sensitive light sensors available for the 4 Series Gran Coupe detect other vehicles which could be blinded and automatically switch to low beams. The Regal Sportback doesn’t offer automatic dimming high beams.

The Regal Sportback’s optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The 4 Series Gran Coupe’s optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.

A power rear sunshade is optional in the 4 Series Gran Coupe to help block heat and glare for the rear passengers. The Regal Sportback doesn’t offer a rear sunshade.

Both the 4 Series Gran Coupe and the Regal Sportback offer available heated front seats. The 4 Series Gran Coupe also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Regal Sportback.

The 4 Series Gran Coupe has a standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air conditioning costs extra on the Regal Sportback.

The 4 Series Gran Coupe’s optional Parking Assistant can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The Regal Sportback doesn’t offer an automated parking system.

Model Availability

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The BMW 4 Series comes in coupe, convertible and four-door hatchback bodystyles; the Buick Regal isn’t available as a coupe or convertible.

Economic Advantages

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Insurance will cost less for the 4 Series Gran Coupe owner. The Car Book by Jack Gillis rates the 4 Series Gran Coupe with a number “1” insurance rate while the Regal Sportback is rated higher at a number “8” rate.

The 4 Series Gran Coupe will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the 4 Series Gran Coupe will retain 47.49% to 50.4% of its original price after five years, while the Regal Sportback only retains 41.25% to 43.07%.

According to The Car Book by Jack Gillis, the 4 Series Gran Coupe is less expensive to operate than the Regal Sportback because it costs $310 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the 4 Series Gran Coupe than the Regal Sportback, including $39 less for a water pump, $229 less for a muffler, $62 less for front brake pads, $3 less for a starter, $127 less for a fuel pump and $140 less for a power steering pump.

Recommendations

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/19

The 4 Series was chosen as one of Car and Driver’s “Top Ten” in 2014. The Regal Sportback has never been a Car and Driver “Top Ten” pick.

The 4 Series was chosen as one of Automobile Magazine’s “All Stars” in 2014. The Regal Sportback has never been an “All Star.”

The BMW 4 Series outsold the Buick Regal by over two to one during 2018.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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