2019 Genesis G80 vs. 2019 BMW 4 Series Gran Coupe

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Genesis G80 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW 4 Series Gran Coupe doesn’t offer pretensioners for the rear seat belts.

The G80’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The 4 Series Gran Coupe doesn’t offer pre-crash pretensioners.

For enhanced safety, the front and rear seat shoulder belts of the Genesis G80 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW 4 Series Gran Coupe doesn’t offer height-adjustable seat belts.

To help make backing safer, the G80’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The 4 Series Gran Coupe doesn’t offer a cross-path warning system.

The G80’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The 4 Series Gran Coupe doesn’t offer a driver alert monitor.

Both the G80 and the 4 Series Gran Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available all wheel drive and rear parking sensors.

For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, with its optional front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the G80 its highest rating: “Top Pick Plus” for 2018, a rating granted to only 28 vehicles tested by the IIHS. The 4 Series Gran Coupe has not been tested, yet.

Warranty

The G80 comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes free 24-hour roadside assistance. The 4 Series Gran Coupe’s 4-year/50,000-mile basic warranty expires 1 year and 10,000 miles sooner.

Genesis’ powertrain warranty covers the G80 6 years and 50,000 miles longer than BMW covers the 4 Series Gran Coupe. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the 4 Series Gran Coupe ends after only 4 years or 50,000 miles.

Reliability

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Genesis vehicles are better in initial quality than BMW vehicles. J.D. Power ranks Genesis first in initial quality, above the industry average. With 19 more problems per 100 vehicles, BMW is ranked 11th.

Engine

The G80 has more powerful engines than the 4 Series Gran Coupe:

 

Horsepower

Torque

G80 3.8 DOHC V6

311 HP

293 lbs.-ft.

G80 3.3T Sport 3.3 turbo V6

365 HP

376 lbs.-ft.

G80 5.0 DOHC V8

420 HP

383 lbs.-ft.

430i Gran Coupe 2.0 turbo 4 cyl.

248 HP

258 lbs.-ft.

440i Gran Coupe 3.0 turbo 6 cyl.

322 HP

332 lbs.-ft.

As tested in Car and Driver the G80 3.3T Sport is faster than the 430i Gran Coupe:

 

G80

4 Series

Zero to 60 MPH

5 sec

5.7 sec

Zero to 100 MPH

12.5 sec

14.9 sec

5 to 60 MPH Rolling Start

5.7 sec

6.8 sec

Quarter Mile

13.6 sec

14.3 sec

Speed in 1/4 Mile

104 MPH

98 MPH

Fuel Economy and Range

To lower fuel costs and make buying fuel easier, the Genesis G80 uses regular unleaded gasoline (premium recommended on G80 3.3T Sport for maximum performance). The 4 Series Gran Coupe requires premium, which can cost 20 to 55 cents more per gallon.

The G80 has 4.5 gallons more fuel capacity than the 4 Series Gran Coupe (20.3 vs. 15.8 gallons), for longer range between fill-ups.

Brakes and Stopping

For better stopping power the G80’s brake rotors are larger than those on the 4 Series Gran Coupe:

 

G80 3.8

G80 3.3T

430i

440i

Front Rotors

13.6 inches

14.2 inches

12.3 inches

13.4 inches

Rear Rotors

12.4 inches

13 inches

11.8 inches

13 inches

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

 

G80

4 Series

 

70 to 0 MPH

167 feet

186 feet

Car and Driver

Tires and Wheels

For better traction, the G80 has larger standard tires than the 4 Series Gran Coupe (245/45R18 vs. 225/45R18). The G80’s optional tires are larger than the largest tires available on the 4 Series Gran Coupe (F:245/40R19 & R:275/35R19 vs. F:225/45R18 & R:255/40R18).

The G80 has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the 4 Series Gran Coupe; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some models of the 4 Series Gran Coupe don’t even offer run-flats.

Suspension and Handling

For a smoother ride and more stable handling, the G80’s wheelbase is 7.9 inches longer than on the 4 Series Gran Coupe (118.5 inches vs. 110.6 inches).

For better handling and stability, the average track (width between the wheels) on the G80 is 3 inches wider in the front and 2 inches wider in the rear than the average track on the 4 Series Gran Coupe.

For better maneuverability, the G80’s turning circle is .9 feet tighter than the 4 Series Gran Coupe’s (36.2 feet vs. 37.1 feet). The G80’s turning circle is 1.3 feet tighter than the 4 Series Gran Coupe xDrive’s (37.4 feet vs. 38.7 feet).

Chassis

The design of the Genesis G80 amounts to more than styling. The G80 has an aerodynamic coefficient of drag of .27 Cd. That is lower than the 4 Series Gran Coupe (.29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the G80 get better fuel mileage.

As tested by Car and Driver while at idle, the interior of the G80 5.0 is quieter than the 430i Gran Coupe xDrive (39 vs. 40 dB).

Passenger Space

Because it has more passenger and cargo room, the EPA rates the G80 a Large car, while the 4 Series Gran Coupe is rated a Compact.

The G80 has 15.7 cubic feet more passenger volume than the 4 Series Gran Coupe (107.7 vs. 92).

The G80 has 1.2 inches more front headroom, 3.5 inches more front legroom, 3.5 inches more front shoulder room, 1.3 inches more rear headroom, 1.3 inches more rear legroom and 2.8 inches more rear shoulder room than the 4 Series Gran Coupe.

Cargo Capacity

With its sedan body style, valet key and remote trunk release lockout, the G80 offers cargo security. The 4 Series Gran Coupe’s hatchback body style defeats cargo security.

Ergonomics

The G80 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The 4 Series Gran Coupe doesn’t offer a remote starting system.

The G80’s optional easy entry system raises the steering wheel and glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The 4 Series Gran Coupe doesn’t offer an easy entry system.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the G80 has standard extendable sun visors. The 4 Series Gran Coupe doesn’t offer extendable visors.

Optional air conditioned seats in the G80 keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The 4 Series Gran Coupe doesn’t offer an air-conditioned driver’s seat.

Recommendations

Consumer Reports® recommends the Genesis G80, based on reliability, safety and performance.

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

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