2015 Infiniti Q70 Review

The 2015 Infiniti Q70 earns praise for combining a comfortable and spacious cabin with energetic powertrains and nimble handling. However, its outdated technology and high ownership costs sink it to the bottom half of our luxury midsize car rankings.

Pros & Cons

  • Comfortable seats with lots of legroom
  • Nimble handling
  • Lively powertrains
  • Hybrid model gets good fuel economy
  • Dated tech features
  • Below-average fuel economy in nonhybrid models
  • Ride may feel too stiff for some
  • Estimated maintenance costs are very high

New for 2015

  • Long-wheelbase Q70L
  • Updated exterior styling
  • Revised interior features




Critics' Rating: 8.0
Performance: 8.2
Interior: 8.2
Total Cost of Ownership: 7.9
Safety: 9.3
J.D. Power Ratings Logo

2015 Infiniti Q70 Overview

Is the 2015 Infiniti Q70 a Good Used Car?

The 2015 Infiniti Q70 is a decent used sedan. It has a nice array of features, roomy front and rear seats, and a lively powertrain lineup. In addition to its V6- and V8-powered models, this luxury midsize car is available as a hybrid or with an extra-long wheelbase for added rear-seat legroom. Though Infiniti is often one of the more affordable luxury brands, this particular vehicle has higher ownership costs than those of many rivals. In short, you can likely spend less and also get a better car. 

Why You Can Trust Us

Our Infiniti Q70 review includes far more than just one person's opinion. We collected professional evaluations from more than 53 sources and combined them with concrete data like fuel economy estimates, safety scores, and performance specs to help you make an informed buying decision.

The Best Cars team – a division of U.S. News & World Report – has been reviewing cars, trucks, and SUVs since 2007. With more than 75 years of combined automotive experience, our editors, writers, and analysts rank a wide variety of new and used cars and issue three annual awards: Best Cars for the Money, Best Cars for Families, and Best Vehicle Brands. To keep our recommendations unbiased, we decline expensive gifts from carmakers, and a third party handles our advertising.

How Much Is the 2015 Infiniti Q70?

Based on listings for the 2015 Infiniti Q70 on our site, the average price is $28,000. Prices range from $22,500 to $33,500 and vary depending on the vehicle’s condition, mileage, features, and location.

See the Best Used Car Deals »

How Much Does the 2015 Infiniti Q70 Cost to Own?

The 2015 Infiniti Q70’s five-year costs for gas, insurance, repairs, and maintenance are projected to be about $35,660, or $7,132 per year. That’s one of the highest estimates in our rankings of luxury midsize cars.

Is It Better to Buy a Used or New Q70?

For 2019, the new Infiniti Q70 gets an impressive set of added standard features. All models now include leather upholstery, heated and cooled front seats, a navigation system, and a surround-view parking camera system, among other additions. These notably dial up the luxury experience, but you don't have to get a new car to get them, as most of these features are available with used Q70s as well. Retail sales prices of 2019 models start around $50,000, which is significantly higher than estimates for used 2018-and-older models. Smart shoppers should be able to find a used edition that's nicely equipped, and still save thousands of dollars.

Read about the new Infiniti Q70 »

You won't have much luck at the dealership finding a new luxury midsize car that costs the same as a used 2015 Q70, as most in the class cost about $35,000 or more.

See the Best New Car Deals »

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Which Model Year of the Infiniti Q70 Is Best?

Though this sedan has been in production since the mid-2000s, it was first called the Q70 in 2011. The long-wheelbase Q70L joined the lineup for 2015, and the hybrid model was discontinued for 2018. Beyond these changes, most updates relate to the interior features, and you'll find nearly identical cars if you're shopping for a 2015, 2016, or 2017 model.

Compare the 2015, 2016, and 2017 Q70 »

How Reliable Is the 2015 Infiniti Q70?

J.D. Power gives the 2015 Infiniti Q70 a predicted reliability rating of three out of five, which is about average.

Read more about Q70 reliability »

2015 Infiniti Q70 Recalls

At the time of this review, there are no recalls for the nonhybrid 2015 Q70, but there is one for the Q70 Hybrid. It relates to a potential issue with the vehicle gradually accelerating unexpectedly. Before buying any used vehicle, make sure all recalls have been addressed.

See more information on Infiniti Q70 safety recalls »

Which Used Infiniti Q70 Is Right for Me?

For 2015, Infiniti offers this sedan as the V6-powered Q70 3.7, the V8-powered Q70 5.6, and the Q70 Hybrid. The long-wheelbase Q70L is available with either the V6 or the V8 engine. Rear-wheel drive is standard, and all-wheel drive is available in gasoline-powered models.

These editions are nearly identical, beyond the drivetrain and body style options, and all three powertrains are lively. Most shoppers will be happy with the Infiniti Q70 3.7 and its 330-horsepower V6. This trim comes standard with synthetic leather upholstery, heated front seats, dual-zone automatic climate control, Bluetooth, a USB port, and 18-inch alloy wheels.

See 2015 Infiniti Q70 trims and specs »

What Does Infiniti's Certified Pre-Owned Warranty Cover?

Infiniti offers a certified pre-owned program for vehicles six years old or less and with fewer than 70,000 miles. Eligibility is determined by the vehicle’s initial sale date. The Infiniti certified pre-owned warranty has three levels of coverage based on the vehicle’s age and mileage.

Vehicles with less than 15,000 miles receive a six-year/75,000-mile warranty from the original new-car purchase date. Vehicles less than four years old with more than 15,000 miles receive a six-year/unlimited-mileage warranty from the original new-car purchase date. Finally, vehicles more than four years old with more than 15,000 miles receive a two-year/unlimited-mileage warranty good from the CPO purchase date. Infiniti CPO vehicles must pass a 167-point inspection. Infiniti CPO vehicles also receive free maintenance for one year. Additional benefits like towing, roadside assistance, and trip interruption coverage may be available, so read the Infiniti warranty page carefully.

Infiniti has one of the better CPO programs in the industry, according to our analysis. Lexus, Tesla, and Jaguar are among the very few that are better.

See the best CPO programs »

How Safe Is the Q70?

The 2015 Infiniti Q70 passed every Insurance Institute for Highway Safety crash test with flying colors. Models equipped with the optional forward emergency braking – part of the Technology package – provide a Superior level of front crash prevention, and they earned the highest designation of Top Safety Pick+.

The National Highway Traffic Safety Administration gave the Q70 an overall safety rating of five out of five stars. The sedan received five stars in the side crash test and four stars in the frontal and rollover tests.

Note that not all crash test ratings apply to the long-wheelbase body style.

A rearview camera is standard. Optional safety features include adaptive cruise control, lane departure warning, a surround-view parking camera system, and parking sensors.

See Q70 safety scores »

2015 Infiniti Q70 Versus the Competition

Which Is Better: 2015 Infiniti Q70 or 2015 Mercedes-Benz E-Class?

The 2015 Mercedes-Benz E-Class is a superb luxury vehicle. Its diverse lineup includes four body styles – sedan, coupe, wagon, and convertible – and the choice of six powertrains. Every engine is energetic, from the base model's four-cylinder to the 577-horsepower V8 in the E63 AMG S. The E-Class also presents one of the finest interiors in the segment. Mercedes tend to be more expensive, but the average E-Class price of $31,900 is only a few thousand above what you'll spend on a Q70, and select ownership costs are lower with the E-Class. If you can swing the higher purchase price, pick the E-Class.

Which Is Better: 2015 Infiniti Q70 or 2015 Lexus ES?

The 2015 Lexus ES places in the top of our luxury midsize car rankings. Part of the reason for its lofty standing relates to its perfect reliability rating and above-average safety rating. The ES also has an upscale cabin, spacious seats, and a princely number of standard features. Finally, you'll spend less with an ES, due to its lower list prices and ownership costs. The winner is clear: go with the Lexus.

Compare the Q70, E-Class, and ES »

2015 Q70 Performance

How Does the 2015 Infiniti Q70 Drive?

All editions of the Q70 are lively and agile, though driving enthusiasts will likely agree that there is no substitute for the range-topping V8 engine. The base model comes with a 330-horsepower 3.7-liter V6, and the uplevel model boasts a 420-horsepower 5.6-liter V8 (this horsepower rating drops to 416 in Q70L models). A seven-speed automatic transmission and rear-wheel drive are standard; all-wheel drive is available.

The Q70 Hybrid, also an energetic sedan, comes with a 3.5-liter V6 engine and an electric motor that collectively produce 360 horsepower.

Does the 2015 Infiniti Q70 Get Good Gas Mileage?

The Infiniti Q70 3.7 has one of the lowest fuel economy ratings in its class, earning 18 mpg in the city and 26 mpg on the highway. This drops to 16 mpg in the city and 24 mpg on the highway in the V8-powered 5.7 edition. On the other end of the spectrum is the Q70 Hybrid, which gets an EPA-estimated 29 mpg city/33 mpg highway.

Read more about Q70 performance »

2015 Q70 Interior

How Many People Does the 2015 Q70 Seat?

The Q70 seats five people. Its cabin provides a generous amount of passenger space in both rows. This is especially true in long-wheelbase models, which receive almost 6 additional inches of back-seat legroom. Synthetic leather upholstery comes standard, as do power adjustable and heated seats up front. Seating upgrades include leather seats, ventilated front seats, a heated steering wheel, heated rear seats (Q70L only), and a power rear sunshade.

How Many Car Seats Fit in the 2015 Infiniti Q70?

You can install child safety seats using the 2015 Q70's LATCH system, which consists of two complete sets of connectors for the rear outboard seats and an upper tether for the rear middle seat.

2015 Infiniti Q70 Features

This sedan's technology isn't very modern or impressive, but it is straightforward and simple to use. The base system includes a six-speaker audio system, a USB port, satellite radio, and Bluetooth phone compatibility (but no Bluetooth audio streaming).

The upgraded infotainment system features an 8-inch touch screen, a navigation system, a 10-speaker Bose premium audio system, a 16-speaker Bose Studio surround-sound system, a CD/DVD player, and audio streaming via Bluetooth.

See 2015 Infiniti Q70 specs »

Read more about Q70 interior »

2015 Infiniti Q70 Dimensions

Infiniti Q70 Cargo Space

The Q70 and Q70L have 14.9 cubic feet of trunk space, which is close to average for a luxury midsize car. That said, the trunk's narrow opening lowers usability somewhat.

The lithium-ion batteries in the Q70 Hybrid condense its trunk to 11.3 cubic feet.

2015 Q70 Length and Weight

The Q70 is about 16.3 feet long, and the Q70L is roughly 16.8 feet long. The curb weight for the Q70 ranges from 3,867 to 4,345 pounds.

Where Was the 2015 Infiniti Q70 Built?

Infiniti built the Q70, Q70L, and Q70 Hybrid in Japan.


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