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2015 Infiniti Q40 Review

The 2015 Infiniti Q40 doesn’t crack the top half of its class because it has an outdated interior design, and rivals have more up-to-date features and better predicted reliability ratings. However, it does boast a potent standard V6 engine and spry handling. 

Pros & Cons

  • Potent V6 engine
  • Athletic handling


  • Poor interior design
  • Lacks advanced driver assistance features





Critics' Rating: 8.3
Performance: 8.4
Interior: 7.8
Total Cost of Ownership: 8.5
This model has never been fully tested for safety. Its overall score is being calculated without safety.
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2015 Infiniti Q40 Overview

Is the 2015 Infiniti Q40 a Good Used Car?

The 2015 Q40 is a good value; it should be cheaper to buy and own than other upscale midsize cars. If you value performance over elegance, the Q40 could be a good choice. But if you need a lot of passenger room or want an opulent interior, you should look elsewhere.

Used 2015 Infiniti Q40 Performance and Interior

The 2015 Infiniti Q40 only has one available engine: a V6 that delivers 328 horsepower. Combined with a quick-shifting seven-speed automatic transmission, the engine gets you moving off the line quickly. It also provides plenty of passing power on the highway. Near-perfect weight distribution results in athletic handling and agile corner-carving abilities. The Q40 also features speed-sensitive steering, which adjusts response and weight based on how fast you're going. You might find the ride quality a little stiff, but it's not as pronounced as other performance-focused sedans. The Q40 shares its platform with the sporty Nissan 370Z

The standard rear-wheel-drive Q40 gets low fuel economy estimates for the class: 19 mpg in the city and 27 mpg on the highway. All-wheel-drive (AWD) models are even worse, at 18 mpg in the city and 25 mpg on the highway. 

Read more about Q40 performance »

Every Q40 comes with heated front seats and full leather upholstery. The front seats are comfortable and supportive. The back seat has good headroom, but legroom is a bit tight. The 2015 Q40 has two complete sets of LATCH connectors in the rear outboard seats, with an additional top-tether anchor for the middle seat. 

Most other interior surfaces feature quality materials and are soft and padded. However, the Q40 isn’t as refined or modern as its competitors, as evidenced by the lack of available driver assistance features, besides a rearview camera. Still, it comes with a number of cool standard tech like Bluetooth, satellite radio, and an intuitive infotainment system. Some models come with navigation, voice command recognition, and a premium Bose audio system. 

Read more about Q40 interior »

Used 2015 Infiniti Q40 Prices

The Q40 comes in only one trim. The average price for a rear-wheel-drive model is around $20,800, while an all-wheel-drive model costs about $1,000 more. Prices vary depending on the car's mileage, condition, features, and location.

See the Best Used Car Deals »

We Did the Research for You: 76 Reviews Analyzed

Our used car rankings and reviews are based on safety and reliability data, total ownership costs, and the opinions of professional test drivers. We researched and analyzed 76 other reviews for this overview of the 2015 Infiniti Q40.

Why You Can Trust Us

U.S. News & World Report has been ranking and reviewing vehicles for 10 years, and our Best Cars team has decades of combined experience writing about cars, trucks, and SUVs. We don’t accept expensive gifts or incentives from car companies, so you can trust that our reviews are impartial. Additionally, a third party places all the ads on our site.

How Reliable Is the 2015 Infiniti Q40?

J.D. Power and Associates gives the 2015 Q40 a predicted reliability score of three out of five, which is about average among all cars on the market but low for the luxury midsize car class.

Read more about Q40 reliability »

How Safe Is the Q40?

The 2015 Infiniti Q40 only underwent one crash test by the National Highway Traffic Safety Administration: It earned five out of five stars in the rollover test. It was not crashed tested by the Insurance Institute for Highway Safety. 

A rearview camera is the only driver assistance feature available in the Q40, but it comes standard. Some rivals have advanced safety features like automatic braking, lane departure warning, and blind spot monitoring. 

See Q40 safety scores »

Should I Consider Another Used Q40?

Infiniti only sold the Q40 as a 2015 model and as a mostly unchanged but renamed version of the G37. The last model year of the G37 was 2013. There's little reason to consider a Q40 over a G37, since the cars share the same powertrain and interior space, as well as many of the same features. Not only will you likely save money by purchasing a G37, but you can also find features such as adaptive cruise control and rear parking sensors that weren't made available in the Q40. Notable changes to the 2013 G37 from the 2012 model include a standard rearview camera and heated front seats, as well as an available moonroof and available navigation. 

Compare the 2012 G37, 2013 G37, and 2015 Q40 » 

Which Used Infiniti Q40 Is Right for Me?

The 2015 Infiniti Q40 is only available in one trim, with either rear-wheel or all-wheel drive. All Q40s comes well equipped with a rearview camera, leather upholstery, heated front seats, satellite radio, and an infotainment system. You'll find additional amenities like a moonroof, navigation, voice recognition, and/or a Bose premium sound system in some Q40s.

If you're interested in a used car but worried about reliability, you may want to consider a certified pre-owned vehicle. The Infiniti CPO 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. Additional benefits like towing and roadside assistance may be available, so read the Infiniti warranty page carefully.

Read more about certified pre-owned vehicles »

Read more about the Infiniti certified pre-owned program »

2015 Infiniti Q40 and Other Cars to Consider

Which Is Better: 2015 Infiniti Q40 or 2015 Infiniti Q50?

The 2015 Infiniti Q50 is a smaller version of the Q40. Both cars were designed to replace the G37 sedan, and both have the same strong V6 engine and performance, but the Q50 has a slightly below-average predicted reliability rating. The interior is where these siblings differ the most. The Q50 comes with leatherette seating and a dual-screen infotainment system, and it's available with leather seats and a host of safety features such as adaptive cruise control, blind spot monitoring, forward collision warning, automatic emergency braking, and a 360-degree camera. For its many advanced safety features, the Q50 is the better choice.

Which Is Better: 2015 Infiniti Q40 or 2015 Lexus ES?

The 2015 Lexus ES sits near the top of the class because of its high predicted reliability rating. It also gets great safety scores (it was an IIHS 2015 Top Safety Pick+). The ES has a strong V6 engine, but its handling sacrifices sportiness in favor of an extremely plush ride. The ES' cabin features high-quality materials and a roomy back seat. Overall, the Lexus is a much better choice than the Infiniti.

Which Is Better: 2015 Infiniti Q40 or 2015 Acura TLX?

The 2015 Acura TLX is a well-rounded luxury midsize car. It’s available with either a four-cylinder or a V6 engine; the smaller engine is actually the better choice because it comes with a more responsive steering system. The TLX has a simple but elegant interior design and similar passenger space as the Q40. Because of its quality, value, and features, we named the TLX our 2015 Best Upscale Midsize Car for the Money.

Compare the Q40, Q50, and ES »


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