2020 BMW 4 Series Gran Coupe vs. 2019 Genesis G80

Detailed Review, Specifications & Comparison

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Safety

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 G80 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.

Compared to metal, the 4 Series Gran Coupe’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Genesis G80 has a metal gas tank.

Both the 4 Series Gran Coupe and the G80 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available all wheel drive.

Warranty

The 4 Series Gran Coupe’s corrosion warranty is 5 years longer than the G80’s (12 vs. 7 years).

Reliability

J.D. Power and Associates rated the 4 Series Gran Coupe first among compact premium cars in their 2018 Initial Quality Study. The G80 was rated second in its category.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Genesis vehicles. Consumer Reports ranks BMW 4 places higher in reliability than Genesis.

Fuel Economy and Range

On the EPA test cycle the 4 Series Gran Coupe gets better fuel mileage than the G80:

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

G80

RWD

3.8 DOHC V6

18 city/26 hwy

3.3 turbo V6

17 city/25 hwy

5.0 DOHC V8

16 city/24 hwy

AWD

3.8 DOHC V6

18 city/24 hwy

3.3 turbo V6

17 city/24 hwy

5.0 DOHC V8

15 city/23 hwy

Regenerative brakes improve the 4 Series Gran Coupe’s fuel efficiency by converting inertia back into energy instead of wasting it. The G80 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the 4 Series Gran Coupe’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The G80 doesn’t offer an automatic engine start/stop system.

Brakes and Stopping

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 standard on the G80 3.8 are solid, not vented.

The 4 Series Gran Coupe stops much shorter than the G80:

4 Series

G80

70 to 0 MPH

162 feet

180 feet

Car and Driver

Tires and Wheels

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 G80 doesn’t offer run-flat tires.

Suspension and Handling

The 430i Gran Coupe handles at .89 G’s, while the G80 AWD pulls only .84 G’s of cornering force in a Car and Driver skidpad test.

Chassis

The BMW 4 Series Gran Coupe may be more efficient, handle and accelerate better because it weighs about 500 to 800 pounds less than the Genesis G80.

The 4 Series Gran Coupe is 1 foot, 1.8 inches shorter than the G80, 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 G80 5.0:

4 Series

G80

70 MPH Cruising

65 dB

70 dB

Cargo Capacity

The 4 Series Gran Coupe has a larger trunk with its rear seat up than the G80 (17 vs. 15.3 cubic feet).

The 4 Series Gran Coupe’s standard rear seats fold to accommodate long and bulky cargo. The G80 doesn’t offer folding rear seats, only a ski pass-through.

Ergonomics

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 G80 can only operate the windows from inside the vehicle, with the ignition on.

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 G80 doesn’t offer an automated parking system.

Model Availability

The BMW 4 Series comes in coupe, convertible and four-door hatchback bodystyles; the Genesis G80 isn’t available as a coupe or convertible.

Economic Advantages

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 G80 only retains 40.26% to 44.12%.

Recommendations

The 4 Series was chosen as one of Car and Driver’s “Top Ten” in 2014. The G80 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 G80 has never been an “All Star.”

The BMW 4 Series outsold the Genesis G80 by over four to one during 2018.

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

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