The Maxima 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 Regal Sportback doesn’t offer a whiplash protection system.
The Maxima Platinum has a standard Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The Regal Sportback only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
The Maxima Platinum’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 Regal Sportback doesn’t offer a driver alert monitor.
Both the Maxima and the Regal Sportback have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front-wheel drive, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available blind spot warning systems and rear cross-path warning.
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 available headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the Maxima its highest rating: “Top Pick Plus” for 2017, a rating granted to only 60 vehicles tested by the IIHS. The Regal Sportback has not been tested, yet.
J.D. Power and Associates rated the Maxima third among large cars in their 2017 Initial Quality Study. The Regal Sportback isn’t in the top three in its category.
J.D. Power and Associates’ 2017 Initial Quality Study of new car owners surveyed provide the statistics that show that Nissan vehicles are better in initial quality than Buick vehicles. J.D. Power ranks Nissan 10th in initial quality, above the industry average. With 2 more problems per 100 vehicles, Buick is ranked 13th.
The Maxima’s 3.5 DOHC V6 produces 50 more horsepower (300 vs. 250) than the Regal Sportback’s standard 2.0 turbo 4 cyl.
The Maxima has 1.7 gallons more fuel capacity than the Regal Sportback (18 vs. 16.3 gallons), for longer range between fill-ups.
The Maxima’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Regal Sportback are solid, not vented.
For better traction, the Maxima has larger tires than the Regal Sportback (245/45R18 vs. 225/55R17).
The Maxima’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 Regal Sportback’s standard 55 series tires.
For better ride, handling and brake cooling the Maxima has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Regal Sportback.
The Maxima has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Regal Sportback doesn’t offer vehicle monitored tire inflation.
The Maxima offers an optional full size spare tire so a flat doesn’t interrupt your trip. A full size spare isn’t available on the Regal Sportback, it requires you to depend on a temporary spare, which has mileage and speed limitations, or roadside assistance and a tow-truck.
For better maneuverability, the Maxima’s turning circle is .9 feet tighter than the Regal Sportback’s (38.1 feet vs. 39 feet). The Maxima’s turning circle is 2.9 feet tighter than the Regal Sportback’s (38.1 feet vs. 41 feet).
The Nissan Maxima may be more efficient, handle and accelerate better because it weighs about 250 to 650 pounds less than the Buick Regal Sportback.
The Maxima has .6 inches more front headroom, 2.9 inches more front legroom and .3 inches more rear shoulder room than the Regal Sportback.
With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the Maxima offers cargo security. The Regal Sportback’s hatchback body style and non-lockable folding seat defeat cargo security.
A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the Maxima. The Regal Sportback doesn’t offer locking storage for small valuables.
If the front windows are left down on the Maxima the driver can raise them 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 Regal Sportback can only operate the windows from inside the vehicle, with the ignition on.
The Maxima’s standard speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The Regal Sportback’s manually variable intermittent wipers have to be constantly adjusted. The Maxima Platinum’s standard wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield.
The Maxima has a standard dual zone air-conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air-conditioning costs extra on the Regal Sportback.
The Nissan Maxima outsold the Buick Regal by almost five to one during the 2017 model year.