Certified Benz & Beemer Compares 2016 BMW 7 SERIES VS 2016 Infiniti Q70 Near Scottsdale, AZ

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2016 BMW 7 SERIES

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VS

2016 Infiniti Q70

Safety Comparison

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The BMW 7 Series has Daytime Running Lights to help keep it more visible under all conditions. Canadian government studies show that driving with lights during the day reduces accidents by 11% by making vehicles more conspicuous. The Q70 doesn’t offer Daytime Running Lights.

An active infrared night vision system optional on the 7 Series helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then projects the image on the windshield, near the driver’s line of sight. The Q70 doesn’t offer a night vision system.

To help make backing safer, the 7 Series’ optional 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 Q70 doesn’t offer a cross-path warning system.

The 7 Series’ 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 Q70 doesn’t offer a driver alert monitor.

The 7 Series has standard BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Q70 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the 7 Series and the Q70 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty Comparison

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The 7 Series’ corrosion warranty is 5 years longer than the Q70’s (12 vs. 7 years).

BMW pays for scheduled maintenance on the 7 Series for 4 years and 50,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Infiniti doesn’t pay scheduled maintenance for the Q70.

There are over 2 times as many BMW dealers as there are Infiniti dealers, which makes it much easier should you ever need service under the 7 Series’ warranty.

Reliability Comparison

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To reliably power the ignition and other systems and to recharge the battery, the 7 Series has a standard 180-amp alternator (250-amp - 7 Series optional). The Q70’s 150-amp alternator isn’t as powerful.

The battery on the 7 Series is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the 7 Series’ battery 20 to 30 degrees cooler, its life is increased by years. The Q70’s battery is in the hot engine compartment.

Engine Comparison

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The 7 Series has more powerful engines than the Q70:

Horsepower

Torque

740i 3.0 turbo 6 cyl.

320 HP

330 lbs.-ft.

750i 4.4 turbo V8

445 HP

480 lbs.-ft.

Q70 3.7 DOHC V6

330 HP

270 lbs.-ft.

Q70 Hybrid 3.5 DOHC V6 hybrid

360 HP

n/a

Q70 5.6 DOHC V8

420 HP

417 lbs.-ft.

As tested in Motor Trend the 750i 4.4 turbo V8 is faster than the Q70 5.6 DOHC V8:

7 Series

Q70

Zero to 60 MPH

4.3 sec

4.8 sec

Quarter Mile

12.7 sec

13.3 sec

Speed in 1/4 Mile

111.9 MPH

108.5 MPH

Fuel Economy and Range Comparison

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On the EPA test cycle the 740i RWD gets better fuel mileage than the Q70 5.6 RWD V8 (21 city/29 hwy vs. 16 city/24 hwy).

Regardless of its engine, regenerative brakes improve the 7 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. Infiniti only offers a regenerative brake system on the Q70 Hybrid.

Regardless of its engine, the 7 Series’ engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Infiniti only offers an automatic engine start/stop system on the Q70 Hybrid.

The 7 Series has 2.8 gallons more fuel capacity than the Q70 Hybrid’s standard fuel tank (20.6 vs. 17.8 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

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For better stopping power the 7 Series’ brake rotors are larger than those on the Q70:

740i/740e

750i

Q70

Q70 Sport Package

Front Rotors

13.7 inches

15.5 inches

12.6 inches

14 inches

Rear Rotors

13.6 inches

14.5 inches

12.1 inches

13.8 inches

The 7 Series stops much shorter than the Q70:

7 Series

Q70

70 to 0 MPH

161 feet

171 feet

Car and Driver

60 to 0 MPH

113 feet

120 feet

Motor Trend

Tires and Wheels Comparison

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For better ride, handling and brake cooling the 7 Series offers optional 21-inch wheels. The Q70’s largest wheels are only 20-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 7 Series can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Q70 doesn’t offer run-flat tires.

Suspension and Handling Comparison

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The 7 Series has standard front and rear gas-charged shocks for better control over choppy roads. The Q70’s suspension doesn’t offer gas-charged shocks.

The 7 Series offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The Q70 doesn’t offer an active sway bar system.

The front and rear suspension of the 7 Series uses air springs for a smoother, controlled ride than the Q70, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The 7 Series offers an available active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Infiniti doesn’t offer an active suspension on the Q70.

The 7 Series has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The Q70’s suspension doesn’t offer adjustable shock absorbers.

The 7 Series has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The 7 Series’ height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The Q70 doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the 7 Series’ wheelbase is 6.3 inches longer than on the Q70L (126.4 inches vs. 120.1 inches).

For better handling and stability, the track (width between the wheels) on the 7 Series is 1.4 inches wider in the front and 3.3 inches wider in the rear than the average track on the Q70.

The 750i xDrive handles at .88 G’s, while the Q70 3.7 pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

The 750i xDrive executes Motor Trend’s “Figure Eight” maneuver 1.5 seconds quicker than the Q70 Hybrid (25.4 seconds @ .75 average G’s vs. 26.9 seconds @ .68 average G’s).

Chassis Comparison

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The front grille of the 7 Series uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Q70 doesn’t offer active grille shutters.

As tested by Car and Driver, the interior of the 750i xDrive is quieter than the Q70 3.7:

7 Series

Q70

At idle

38 dB

39 dB

Full-Throttle

72 dB

77 dB

70 MPH Cruising

68 dB

73 dB

Passenger Space Comparison

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The 7 Series has 1.7 inches more front headroom, .8 inches more front shoulder room, 1.2 inches more rear headroom, 8.2 inches more rear legroom and 1 inch more rear shoulder room than the Q70.

For enhanced passenger comfort on long trips the 7 Series’ available rear seats recline. The Q70’s rear seats don’t recline.

Cargo Capacity Comparison

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A low lift-over trunk design makes loading and unloading the 7 Series easier. The 7 Series’ trunk lift-over height is 27.2 inches, while the Q70’s liftover is 29.1 inches.

To make loading and unloading groceries and cargo easier when your hands are full, the 7 Series’ trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The 7 Series also has a standard power trunk, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper. The Q70 doesn’t offer a power or hands-free opening trunk.

Ergonomics Comparison

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The 7 Series offers a 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 Q70 doesn’t offer a remote starting system.

Unlike the driver-only memory system in the Q70, the 7 Series has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The 7 Series 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 Q70 doesn’t offer a heads-up display.

The power windows standard on both the 7 Series and the Q70 have locks to prevent small children from operating them. When the lock on the 7 Series is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Q70 prevents the driver from operating the other windows just as it does the other passengers.

While driving with high beams on, sensitive light sensors standard on the 7 Series detect other vehicles which could be blinded and automatically switch to low beams. The Q70 doesn’t offer automatic dimming high beams.

Optional air-conditioned front and rear seats keep the 7 Series’ passengers comfortable and take the sting out of hot leather in summer. The Q70 doesn’t offer air-conditioned seats in the rear.

Standard BMW Apps for the 7 Series allows the driver and passengers access to select programs on their smartphones, including reading text messages aloud, playing internet radio stations, tagging songs to buy them later, following twitter accounts and other connected activities without taking their eyes off the road or their hands from the wheel. The Q70 doesn’t offer factory integrated smartphone program access.

The 7 Series’ 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 Q70 doesn’t offer an automated parking system.

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