The 2018 Infiniti QX80 full-size SUV is powered by a 5.6-liter V8 engine with an output of 400 hp and 413 lb-ft of torque. That is mated with a seven-speed automatic transmission and feeds power to either the rear wheels only or to all four wheels. The eight-cylinder powerplant delivered ample grunt to haul its massive body around. It took a little over six seconds to reach 60 mph, which was a quick performer for its size. The transmission shifted between gears with no hesitation and just worked seamlessly with the engine. While attacking corners with urgency only produced understeer, dialing the speed down proved to retain stability through the turn. The hydraulic suspension controlled the body roll well, which helped in staying in the lane. The steering was responsive and it was accurate in maneuvering despite its size. The effort exerted in changing direction was light although the feedback from the pavement was minimal. There was a strong and predictable stopping force from the brakes. But like vehicles of its size, the body lurching forward could be observed during braking. It took 116 feet to stop from 60 mph, which was stellar among its rivals. The pedal was soft but there was still a progressive sensation when further pressed down.
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The base trim comes standard with automatic LED headlights and foglights, power-folding and auto-dimming side mirrors, a power-adjustable heated steering wheel, a power liftgate, keyless entry and ignition, automatic climate control, a power-adjustable heated driver seat, a power-adjustable front passenger seat, driver-seat memory settings, a power-folding third-row seat, Bluetooth, navigation, voice commands, an auxiliary audio port, four USB ports, and an infotainment system with a CD player, an 8-inch touchscreen, and a 13-speaker Bose sound system. The Driver Assistance package includes additional advanced safety and driver aids. The Theater package includes a rear-seat entertainment system, a set of wireless headphones, a 120V power outlet, and heated second-row seats. The Deluxe Technology package includes the Driver Assistance and Theater packages, hydraulic suspension, adaptive headlights, headlight washers, ventilated front seats, air filtration for climate control, and a 15-speaker Bose sound system. Onboard 4G LTE and a Wi-Fi hotspot are available as standalone options.
The 2018 QX80 has not been tested by the National Highway Traffic and Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS). Advanced safety and driver aids that come standard in the SUV include a 360-degree camera, automatic high beams, and front and rear parking sensors. If you are looking for more features, the optional add-ons can be bought. The optional packages include the adaptive cruise control, forward collision warning with pedestrian detection, automatic braking, lane departure warning and intervention, blind-spot monitoring, stolen-vehicle notification, and speed limit notifications.
The 2018 QX80 has a length of 208.9 inches, a width of 79.9 inches, a height of 75.8 inches, and a wheelbase of 121.1 inches. The front fascia is dominated by a large center grille flanked by sleek headlights. While the boxy silhouette is utilitarian, its features are well-proportioned and chrome is not overused. These contribute to an upscale look that is more common among its rivals. The wheel size starts with 20 inches and can be upgraded to 22-inch wheels depending on the package option. The sunroof and roof rails come standard.
The running boards had a wide area to step on when getting inside and the grab handles were well placed when looking for support. Getting into the third row, however, was a hassle because the second-row seats were still obtrusive. Up to seven people can be accommodated inside and the first and second rows offered a lot of allowance for movement. The third row was ideal for shorter passengers and children and they still fit with no problems. The seats weren’t plush but they did not induce fatigue in the lower body. Compared to its rivals, the range of adjustment was limited so not much of the fit can be fine-tuned. Leather upholstery comes standard and it felt soft to the touch and was finished well. The interior trim featured solid parts but the layout didn’t look as premium as its rivals. Even with its capable handles, the ride quality was compliant and the impact from road imperfections was dispersed with ease. However, the bigger wheels were more jarring to the ride, especially on undulating surfaces. Road noise was hardly audible but wind noise can be heard when driving at the highway.
There is 16.6 cu-ft of space behind the third row, 49.6 cu-ft behind the second row. Folding down the second and third rows opens up 95.1 cu-ft of space available for cargo.