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The 2 Series Gran Coupe has standard PostCrash iBrake, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Mazda 6 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Over 200 people are killed each year when backed over by motor vehicles. The 2 Series Gran Coupe offers optional Active Park Distance Control that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Mazda 6 doesn’t offer backup collision prevention brakes.
The 2 Series Gran Coupe has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mazda 6 doesn’t offer all-wheel drive.
The 2 Series Gran Coupe’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 Mazda 6 doesn’t offer a driver alert monitor.
Compared to metal, the 2 Series Gran Coupe’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Mazda 6 has a metal gas tank.
Both the 2 Series Gran Coupe and the Mazda 6 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, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras and rear cross-path warning.
The 2 Series Gran Coupe comes with a full 4-year/50,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The 6’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.
The 2 Series Gran Coupe’s corrosion warranty is 7 years longer than the Mazda 6’s (12 vs. 5 years).
BMW pays for scheduled maintenance on the 2 Series Gran Coupe for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Mazda doesn’t pay scheduled maintenance for the 6.
J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Mazda vehicles. J.D. Power ranks BMW 7th in reliability, above the industry average. With 37 more problems per 100 vehicles, Mazda is ranked 21st.
The 228i xDrive Gran Coupe’s standard 2.0 turbo 4-cylinder produces 41 more horsepower (228 vs. 187) and 72 lbs.-ft. more torque (258 vs. 186) than the Mazda 6’s standard 2.5 DOHC 4-cylinder. The M235i xDrive Gran Coupe’s standard 2.0 turbo 4-cylinder produces 51 more horsepower (301 vs. 250) and 21 lbs.-ft. more torque (331 vs. 310) than the Mazda 6 Grand Touring/Signature’s standard 2.5 turbo 4-cylinder.
Regenerative brakes improve the 2 Series Gran Coupe’s fuel efficiency by converting inertia back into energy instead of wasting it. The Mazda 6 doesn’t offer a regenerative braking system.
In heavy traffic or at stoplights the 2 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 Mazda 6 doesn’t offer an automatic engine start/stop system.
An eight-speed automatic is standard on the BMW 2 Series Gran Coupe, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the Mazda 6.
The 2 Series Gran Coupe’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The Mazda 6 doesn’t offer launch control.
The 2 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 on the Mazda 6 are solid, not vented.
For better traction, the 2 Series Gran Coupe’s optional tires are larger than the largest tires available on the Mazda 6 (235/35R19 vs. 225/55R17).
The 2 Series Gran Coupe’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 Mazda 6 Sport’s standard 55 series tires. The 2 Series Gran Coupe’s optional tires have a lower 35 series profile than the Mazda 6 Touring/Grand Touring/Signature’s 45 series tires.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the 2 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 Mazda 6 doesn’t offer run-flat tires.
The 2 Series Gran Coupe offers an optional 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 Mazda 6’s suspension doesn’t offer adjustable shock absorbers.
The 2 Series Gran Coupe is 1 foot, 2.2 inches shorter than the Mazda 6, making the 2 Series Gran Coupe easier to handle, maneuver and park in tight spaces.
The 2 Series Gran Coupe has a larger trunk than the Mazda 6 (15.1 vs. 14.7 cubic feet).
A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the 2 Series Gran Coupe. The Mazda 6 doesn’t offer locking storage for small valuables.
To make loading groceries and cargo easier when your hands are full, the 2 Series Gran Coupe’s available trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The Mazda 6 doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.
The 2 Series Gran Coupe uses gas struts to support the hood for easier service access. The Mazda 6 uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.
The power windows standard on both the 2 Series Gran Coupe and the Mazda 6 have locks to prevent small children from operating them. When the lock on the 2 Series Gran Coupe is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Mazda 6 prevents the driver from operating the other windows just as it does the other passengers.
If the windows are left open on the 2 Series Gran Coupe the driver can close them all at the outside door handle. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Mazda 6 can only operate the windows from inside the vehicle, with the ignition on.
The 2 Series Gran Coupe’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Mazda 6’s power lock and power mirror switches are unlit, making them difficult to find at night and operate safely.
The 2 Series Gran Coupe’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Mazda only offers heated mirrors on the Mazda 6 Grand Touring/Signature.
When the 2 Series Gran Coupe is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Mazda 6’s mirror doesn’t automatically adjust for backing.
Both the 2 Series Gran Coupe and the Mazda 6 offer rear vents. For greater rear passenger comfort, the 2 Series Gran Coupe has standard rear air conditioning vents to keep rear occupants cool in summer or warm in winter. The Mazda 6 doesn’t offer rear air conditioning vents, only heat vents.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW 2 Series Gran offers an optional wireless phone charging system (Qi) in the center console. The Mazda 6 doesn’t offer wireless personal charging.
The 2 Series Gran Coupe’s optional Parking Assistant can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Mazda 6 doesn’t offer an automated parking system.
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