Q50 2017 Angled
Q70 Angled
2018 INFINITI Q50 vs. 2017 INFINITI Q70
23 city/30 hwy Fuel Economy 18 city / 25 hwy
208 hp Horsepower 330 hp
258 lb-ft Torque 270 lb-ft


Serving Duluth, Atlanta, and Roswell, GA

The 2018 INFINITI Q50 arrives with an updated look. What is the difference between its package and the 2017 INFINITI Q70? Both are handsome luxury sedans, and each has a good reputation for design and features. In this review, we will compare performance, style and safety.


When you choose the 2018 INFINITI Q50, you have a number of engine options. For starters, a turbo four-liter engine kicks out 208 horsepower. You will forget it is a four-cylinder except when you are saving at the gas pump. Shoppers can also step up to twin-turbo V6 that cranks out 300 horsepower. Fuel efficiency meets performance in the V6 hybrid. It cranks out 360 horsepower. At the top, you can get a 400-horsepower V6. A seven-speed automatic takes care of the gear shifting. With the Red Sport 400, drivers command 350 lb.-ft. of torque. This is more horsepower than you can get on rivals like the Mercedes AMG C43 or Lexus IS350.

For the bigger Q70, INFINITI starts you off with a V6 engine with best-in-class horsepower. It generates 330 horses for serious speed. If you want more, you can enjoy the smart 360-horsepower hybrid edition. For the fastest acceleration, the 5.6-liter V6 generates 417 lb.-ft. of torque. This 420-horsepower engine is a favorite of driving enthusiasts. The sharp handling was inspired by 370Z technology. Like the Q50, INFINITI utilizes the seven-speed automatic for these sedans as well.


The 2018 INFINITI Q50 sedan has 102 cu.ft. in its passenger cabin and 14 cubes in the trunk. The Q70 offers even more space. In fact, it has the best legroom in its class. A Q70 long version has 110 cubes to give passengers even more rear legroom. The midsized and large sedans have similar basic packages with power chairs, automatic temperature controls, and the INFINITI Intelligent Key. The Q70 has a seven-inch touchscreen with an INFINITI controller while the Q50 has an InTouch dual display. When it comes to style, the larger sedan starts with leather and a handsome Japanese ash wood as part of its more upscale design. Other Q70 standards include heated front seats, an exit assist for the driver’s seat, and Fine Vision instrumentation. The base Q50 starts you off with INFINITI high-quality leatherette upholstery. Of course, many Q70 amenities, including leather, are offered in Q50 trims and packages.


Both sedans are offering a suite of ten crash avoidance systems. The most unique is the backup collision intervention system. It watches for trouble and can brake accordingly. The INFINITI forward collision warning has predictive capability, looking ahead further than the average system. It will respond with an autobrake as needed for extra safety. Additionally, drivers will appreciate automated intervention with the intelligent lane watch system. Moving object detection, another INFINITI exclusive, is part of a Bird’s Eye camera system. A rear cross-traffic alert is available as a natural complement to the standard rearview camera. You can also get a blind spot monitor to assist with safer lane changes.

*MSRP excludes destination, taxes, title and registration fees. Starting at MSRP refers to the base model, optional equipment not included. Pricing and offers may change at any time without notification. To get full pricing details, see your dealer.

All figures are EPA estimates. Actual mileage may vary.