Certified Benz & Beemer Compares 2017 Genesis G80 VS 2017 Infiniti Q50 Near Scottsdale, AZ

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2017 Genesis G80

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2017 Infiniti Q50

Safety Comparison

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 Infiniti Q50 doesn’t offer pretensioners for the rear seat belts.

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 Infiniti Q50 has only front height-adjustable seat belts.

The G80 has standard Anti-Whiplash Front Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Anti-Whiplash Front Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Q50 doesn’t offer a whiplash protection system.

Both the G80 and the Q50 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, 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.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Genesis G80 is safer than the Infiniti Q50:





5 Stars

4 Stars




5 Stars

4 Stars




Neck Injury Risk



Neck Stress

189 lbs.

223 lbs.

Neck Compression

22 lbs.

45 lbs.




5 Stars

3 Stars

Chest Compression

.4 inches

1 inches

Neck Injury Risk



Neck Stress

129 lbs.

145 lbs.

Neck Compression

44 lbs.

85 lbs.

Leg Forces (l/r)

147/55 lbs.

541/294 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Genesis G80 is safer than the Infiniti Q50:





Rear Seat


5 Stars

5 Stars




Spine Acceleration

31 G’s

46 G’s

Hip Force

394 lbs.

415 lbs.


Into Pole


5 Stars

5 Stars

Max Damage Depth

10 inches

19 inches

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, with its optional front crash prevention system, and its headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the G80 its highest rating: “Top Pick Plus” for 2017, a rating granted to only 53 vehicles tested by the IIHS. The Q50 has not been fully tested, yet.

Warranty Comparison

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 Q50’s 4 year/60,000 mile basic warranty expires 1 year sooner.

Genesis’ powertrain warranty covers the G80 4 years and 30,000 miles longer than Infiniti covers the Q50. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the Q50 ends after only 6 years or 70,000 miles.

Genesis pays for scheduled maintenance on the G80 for 3 years and 36,000 miles. Genesis will pay for oil changes, lubrication and any other required maintenance. Infiniti doesn’t pay scheduled maintenance for the Q50.

There are over 66 percent more Genesis dealers than there are Infiniti dealers, which makes it much easier should you ever need service under the G80’s warranty.

Reliability Comparison

The battery on the G80 is in the trunk, which protects it from hot underhood temperatures which can degrade battery life. By keeping the G80’s battery 20 to 30 degrees cooler, its life is increased by years. The Q50’s battery is in the hot engine compartment.

J.D. Power and Associates rated the G80 third among midsize premium cars in their 2016 Initial Quality Study. The Q50 isn’t in the top three in its category.

Engine Comparison

The G80 has more powerful engines than the Q50:




G80 3.8 DOHC V6

311 HP

293 lbs.-ft.

G80 5.0 DOHC V6

420 HP

383 lbs.-ft.

Q50 2.0t 2.0 turbo 4 cyl.

208 HP

258 lbs.-ft.

Q50 3.0t 3.0 turbo V6

300 HP

295 lbs.-ft.

Q50 Hybrid 3.5 DOHC V6

360 HP


Q50 Red Sport 400 3.0 turbo V6

400 HP

350 lbs.-ft.

Fuel Economy and Range Comparison

To lower fuel costs and make buying fuel easier, the Genesis G80 uses regular unleaded gasoline (premium recommended on G80 5.0 for maximum performance). The Q50 requires premium, which can cost 20 to 55 cents more per gallon.

The G80 has 2.5 gallons more fuel capacity than the Q50 Hybrid’s standard fuel tank (20.3 vs. 17.8 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

For better stopping power the G80’s brake rotors are larger than those on the Q50:


G80 3.8

G80 5.0


Q50 Sport

Front Rotors

13.6 inches

14.2 inches

12.6 inches

14 inches

Rear Rotors

12.4 inches

12.4 inches

12.1 inches

13.8 inches

The G80 stops shorter than the Q50:





60 to 0 MPH

114 feet

115 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the G80 has larger standard tires than the Q50 (245/45R18 vs. 225/55R17).

The G80 3.8’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 Q50’s standard 55 series tires.

For better ride, handling and brake cooling the G80 3.8 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Q50.

Suspension and Handling Comparison

The G80 has standard front and rear gas-charged shocks for better control over choppy roads. The Q50’s suspension doesn’t offer gas-charged shocks.

For a smoother ride and more stable handling, the G80’s wheelbase is 6.3 inches longer than on the Q50 (118.5 inches vs. 112.2 inches).

For better handling and stability, the average track (width between the wheels) on the G80 is 3.3 inches wider in the front and 3.2 inches wider in the rear than the average track on the Q50.

The G80 5.0 handles at .88 G’s, while the Q50 pulls only .87 G’s of cornering force in a Motor Trend skidpad test.

For better maneuverability, the G80’s turning circle is .5 feet tighter than the Q50’s (36.2 feet vs. 36.7 feet). The G80’s turning circle is 1.2 feet tighter than the Q50 AWD’s (36.2 feet vs. 37.4 feet).

Chassis Comparison

The design of the Genesis G80 amounts to more than styling. The G80 has an aerodynamic coefficient of drag of .26 Cd. That is lower than the Q50 (.26 to .29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the G80 get better fuel mileage.

Passenger Space Comparison

Because it has more passenger and cargo room, the G80 is rated a Large car by the EPA, while the Q50 is rated a Mid-size.

The G80 has 5.8 cubic feet more passenger volume than the Q50 (107.7 vs. 101.9).

The G80 has .9 inches more front headroom, 1.2 inches more front legroom, 2.5 inches more front hip room, 1.6 inches more front shoulder room, .7 inches more rear headroom, 2.3 inches more rear hip room and 1 inch more rear shoulder room than the Q50.

Cargo Capacity Comparison

The G80 has a much larger trunk than the Q50 (15.3 vs. 13.2 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, the G80’s trunk can be opened just by waiting momentarily behind the back bumper, leaving your hands completely free. The G80 also offers an optional power trunk, which opens and closes automatically by pressing a button. The Q50 doesn’t offer a power or hands-free opening trunk.

Ergonomics Comparison

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 Q50 doesn’t offer a remote starting system.

The G80 offers an optional heads-up display which projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Q50 doesn’t offer a heads-up display.

The power windows standard on both the G80 and the Q50 have locks to prevent small children from operating them. When the lock on the G80 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Q50 prevents the driver from operating the other windows just as it does the other passengers.

A power rear sunshade is optional in the G80 to help block heat and glare for the rear passengers. The Q50 doesn’t offer a rear sunshade.

The G80 has standard heated front seats. Heated front seats cost extra on the Q50, and aren’t available on the Q50 Base. The G80 AWD also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Q50.

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 Q50 doesn’t offer an air-conditioned driver’s seat.

Economic Advantages Comparison

Insurance will cost less for the G80 owner. The Car Book by Jack Gillis rates the G80 with a number “3” insurance rate while the Q50 is rated higher at a number “5” rate.

According to The Car Book by Jack Gillis, the G80 is less expensive to operate than the Q50 because it costs $396 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the G80 than the Q50, including $314 less for a water pump, $56 less for an alternator, $5 less for a starter, $193 less for fuel injection, $63 less for a fuel pump, $215 less for front struts and $985 less for a power steering pump.

Recommendations Comparison

The Genesis G80 has won recognition from these important consumer publications:




Consumer Reports® Recommends



Car Book “Best Bet”



A group of representative automotive journalists from North America selected the G80 as the 2009 North American Car of the Year. The Q50 has never been chosen.

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