Certified Benz & Beemer Compares 2016 BMW 6 SERIES VS 2016 Maserati GranTurismo Near Phoenix, AZ

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2016 Maserati GranTurismo

Safety Comparison

The 6 Series’ pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The GranTurismo doesn’t offer pre-crash pretensioners.

The 6 Series has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The GranTurismo doesn’t offer a whiplash protection system.

The 6 Series offers optional City Collision Mitigation, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The GranTurismo doesn't offer collision warning or crash mitigation brakes.

The 6 Series offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The GranTurismo doesn’t offer all-wheel drive.

A passive infrared night vision system optional on the 6 Series helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The GranTurismo doesn’t offer a night vision system.

The 6 Series’ optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The GranTurismo doesn’t offer a lane departure warning system.

The 6 Series offers an optional Side and Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The GranTurismo only offers front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The 6 Series’ optional blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. The GranTurismo doesn’t offer a system to reveal objects in the driver’s blind spots.

The 6 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 GranTurismo 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 6 Series and the GranTurismo 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, daytime running lights and front and rear parking sensors.

Warranty Comparison

The 6 Series’ corrosion warranty is 8 years and unlimited miles longer than the GranTurismo’s (12/unlimited vs. 4/50,000).

BMW pays for scheduled maintenance on the 6 Series for 4 years and 50,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Maserati doesn’t pay scheduled maintenance for the GranTurismo.

There are over 6 times as many BMW dealers as there are Maserati dealers, which makes it much easier should you ever need service under the 6 Series’ warranty.

Reliability Comparison

To reliably power the ignition and other systems and to recharge the battery, the 6 Series has a standard 210-amp alternator. The GranTurismo’s 150-amp alternator isn’t as powerful.

To reliably start during all conditions and help handle large electrical loads, the 6 Series has a standard 900-amp battery. The GranTurismo’s 850-amp battery isn’t as powerful.

Engine Comparison

The 650i’s standard 4.4 turbo V8 produces 96 lbs.-ft. more torque (480 vs. 384) than the GranTurismo’s 4.7 DOHC V8. The M6’s standard 4.4 turbo V8 produces 98 more horsepower (552 vs. 454) and 118 lbs.-ft. more torque (502 vs. 384) than the GranTurismo’s 4.7 DOHC V8. The M6 Competition Package’s standard 4.4 turbo V8 produces 138 more horsepower (592 vs. 454) and 116 lbs.-ft. more torque (500 vs. 384) than the GranTurismo’s 4.7 DOHC V8.

Fuel Economy and Range Comparison

On the EPA test cycle the 6 Series Coupe gets better fuel mileage than the GranTurismo:

6 Series




15 city/22 hwy



21 city/32 hwy



17 city/25 hwy

13 city/21 hwy

4.7 V8/Auto


14 city/20 hwy




20 city/29 hwy



16 city/25 hwy


Regenerative brakes improve the 6 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. The GranTurismo doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the 6 Series’ 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 GranTurismo doesn’t offer an automatic engine start/stop system.

The 6 Series M6’s standard fuel tank has 2.1 gallons more fuel capacity than the GranTurismo (21.1 vs. 19 gallons).

Brakes and Stopping Comparison

For better stopping power the 6 Series’ brake rotors are larger than those on the GranTurismo:


M6 Carbon Brakes


Front Rotors

13.7 inches

16.1 inches

13 inches

Rear Rotors

13.6 inches

15.6 inches

13 inches

The 6 Series stops shorter than the GranTurismo:

6 Series


60 to 0 MPH

105 feet

106 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the M6’s front tires are larger than the largest tires available on the GranTurismo (F:265/40R19 & R:295/35R19 vs. F:255/35R20 & R:295/35R20).

The 6 Series’ optional 275/30R20 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the GranTurismo’s 35 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the 6 Series can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The GranTurismo doesn’t offer run-flat tires.

Suspension and Handling Comparison

The 6 Series offers an available active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Maserati doesn’t offer an active suspension on the GranTurismo.

For better handling and stability, the average track (width between the wheels) on the 6 Series is 1.2 inches wider in the front and 1.9 inches wider in the rear than the track on the GranTurismo.

The M6 Coupe executes Motor Trend’s “Figure Eight” maneuver quicker than the GranTurismo (24.4 seconds @ .83 average G’s vs. 25 seconds @ .74 average G’s).

Chassis Comparison

The BMW 6 Series may be more efficient, handle and accelerate better because it weighs up to about 350 pounds less than the Maserati GranTurismo.

Passenger Space Comparison

The 6 Series Coupe has 1 inch more front headroom, .4 inches more front legroom, 6.1 inches more front shoulder room, .4 inches more rear legroom and .6 inches more rear shoulder room than the GranTurismo.

Cargo Capacity Comparison

The 6 Series Coupe has a much larger trunk than the GranTurismo (13 vs. 6.1 cubic feet).

With its coupe or convertible body style, valet key and remote trunk release lockout, the 6 Series offers cargo security. The GranTurismo’s non-lockable remote release defeats cargo security.

Ergonomics Comparison

Unlike the driver-only memory system in the GranTurismo, the 6 Series offers an optional 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 6 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 GranTurismo doesn’t offer a heads-up display.

If the windows are left down on the 6 Series the driver can raise them all using the key in the outside lock cylinder. On a hot day the driver can lower the windows from outside the vehicle using the key in the outside lock cylinder or the keyless remote. The driver of the GranTurismo can only operate the windows from inside the vehicle, with the ignition on.

Comfort Access standard on the 6 Series allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Maserati GranTurismo doesn’t offer an advanced key system.

Heated windshield washer nozzles are standard on the 6 Series to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The GranTurismo doesn’t offer heated windshield washer nozzles.

While driving with high beams on, sensitive light sensors standard on the 6 Series detect other vehicles which could be blinded and automatically switch to low beams. The GranTurismo doesn’t offer automatic dimming high beams.

A power rear sunshade is optional in the 6 Series Coupe to help block heat and glare for the rear passengers. The GranTurismo doesn’t offer a rear sunshade.

Optional air conditioned seats in the 6 Series keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The GranTurismo doesn’t offer air conditioned seats.

On extremely cold Winter days, the 6 Series’ optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The GranTurismo doesn’t offer a heated steering wheel.

To keep a safe, consistent following distance, the 6 Series Automatic offers an optional Active Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The GranTurismo doesn’t offer an adaptive cruise control.

The 6 Series’ standard steering wheel mounted cruise control is close at hand. The GranTurismo’s standard cruise control is on an over-crowded turn signal stalk.

Standard BMW Apps for the 6 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 GranTurismo doesn’t offer factory integrated smartphone program access.

The 6 Series’ standard GPS navigation system has a real-time traffic update feature that plots alternative routes to automatically bypass traffic problems. (Service not available in all areas.) The GranTurismo’s navigation system doesn’t offer real-time traffic updates.

The 6 Series (except xDrive)’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 GranTurismo doesn’t offer an automated parking system.

Recommendations Comparison

J.D. Power and Associates rated the 6 Series first among midsize premium sporty cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The GranTurismo isn’t in the top three.

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