Used 2015 Infiniti Q40 for sale 

The Infiniti Q40 comes in a single trim line that starts at $33,950 for the RWD version and $35,550 for AWD. Both iterations, engine and feature-wise, are identically equipped with the same 3.7 L V6 under the hood. There are a lot of standard features incorporated in the Q40, including High-Intensity Discharge (HID) bi-functional xenon headlights, LED rear brake lights and center high-mounted stoplight, Dual Zone Automatic Temperature Control (ATC) system with microfilter, 8-way power driver’s seat with adjustable lumbar support, leather-appointed seating, 8-way power front passenger's seat, and heated front seats.

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The Q40 comes in a single trim with varying prices according to the drivetrain chosen. The rear-wheel-drive variant priced at $33,950 would be the best trim to opt for, and it comes with the standard 3.7 L V6 churning out 328 hp and 269 lb-ft. It comes with a lot of standard features, including 17-inch, triple 5-spoke aluminum-alloy wheels, dual-zone Automatic Temperature Control (ATC) system with microfilter, and more.

The 2015 Infiniti Q40 comes with a 3.7 L V6 engine mated to a 7-Speed Automatic transmission churning out 328 hp of maximum power and 269 lb-ft of maximum torque.

The Q40 takes 5.5 seconds to reach a speed of 60 mph and 13.8 seconds to cross the quarter-mile mark. The Q40 offers a good amount of power at a great price along with sporty handling and impressive maneuverability.

The Infiniti is the most powerful of the lot, outputting 328 hp and 269 lb-ft, followed by the TLX and the Lexus producing 290 and 268 hp, respectively. The Q40 is the fastest to reach 60 mph in 5.5 seconds, followed by the TLX in 5.9 seconds and ES 350 in 6.5 seconds. The Infiniti also has the highest top speed of 150 mph, followed by the Lexus, which is limited at 131 mph, while the Acura can go upto 125 mph only.

The Infiniti Q40 is not a very fuel-efficient car. The increased power and performance do take a toll on its efficiency. It delivers fuel efficiency of 18 mpg in the city, 25 on the highway, and a combined efficiency of 20 mpg. The Q40 has a fuel capacity of 20.0 gallons, outputting a range of 360 miles in the city, 540 on the highway, and a combined range of 432 miles. 

In comparison, the Acura is the most fuel-efficient, offering a combined efficiency of 25 mpg, followed by the Lexus ES offering 24 mpg, while the Infiniti delivers a significantly lower combined efficiency of 20 mpg. The Q40 has the largest fuel capacity of 20.0 gallons, followed by the Lexus and Acura with an identical fuel capacity of 17 gallons. The Acura delivers the best-combined range of 430 miles, followed by the Lexus and Q40 delivering 412 and 400 miles, respectively.

The Infiniti Q40 has an upscale cabin with enough space on the inside. The materials and trims inside the cabin cannot be considered as luxurious as many among the competition, but still, they are of good quality. Infiniti has compromised the more luxurious interior they used to offer for a more powerful engine and good fit and finish.

Another con of the cabin is that it is not properly noise-isolated, and the engine and road noise do creep in excessively, hindering a peaceful journey. There is enough room in both rows, and the seats are comfortable, supportive, and covered in leather. The Q40 gets a cargo capacity of 13.5 cu-ft.

The interior space of the compared cars is very competitive, but the Lexus among them is the clear winner as it offers a phenomenal amount of legroom in the rear row. The Lexus does fall a little short on legroom in the front row, while it offers a whole lot more of it in the second row. The Infiniti has the most legroom in the front row and is in second place when it comes to the legroom in the second row. The Lexus again offers the best cargo space also, measuring 15.2 cu-ft, followed by the Infiniti and Acura offering a cargo area of 13.5 and 13.2 cu-ft, respectively. Few key features include-

• Dual-Zone Automatic Temperature Control (ATC) system with microfilter
• Leather-appointed seating 
• 8-way power driver’s seat with adjustable lumbar support 
• 8-way power front passenger's seat 
• Heated front seats 
• Shodo aluminum interior trim 
• Leather-wrapped 3-spoke steering wheel and shift knob with aluminum accent 
• Rear-seat heater ducts under front seats 

How intuitive is the 2015 Infiniti Q40’s infotainment unit?

The new Infiniti Q40 features a huge 7-inch color driver information display and a 7-inch touchscreen infotainment unit equipped with lane guidance and 3D graphics along with Bluetooth phone and audio connectivity and USB ports. A 6-speaker audio system is standard in the Q40, whereas a more premium Infiniti's Studio-on-Wheels Bose 10-speaker Premium Audio System with 3-way component front door speakers with 10-inch subwoofers and a parcel shelf-mounted subwoofer is available for an added premium. Other important infotainment features include:

• 7-inch color vehicle information display 
• Optional Infiniti Hard Drive Navigation System 
• 7-inch WVGA color touch-screen display, Lane Guidance, and 3-D building graphics
• Optional Infiniti Voice Recognition for audio, information, and navigation systems
• RearView Monitor
• 6-speaker audio system with AM/FM/CD with MP3 playback capability, Radio Data System (RDS), and speed-sensitive volume control 
• Infiniti Studio on Wheels by Bose including a 10-speaker Premium Audio System 
• SiriusXM Satellite Radio

The 2015 Q40 looks almost the same as the G37 it replaces, with minor exterior design changes. There’s nothing to be excited about the design language of this sedan as it looks like a traditional Infiniti sedan.

Infiniti really has to get their design game updated as this doesn’t look like a new or refreshed machine but like something that has been tweaked a bit with very minor exterior modifications. The Q40 has a frowning stance with the projector headlamps seeming like they are trying to scare you. The Q40 has a ground clearance of 4.9 inches.

The Infiniti Q40 weighs the most, weighing in at 3,821 lbs, followed by the TLX which weighs 3,585 lbs, followed by the Lexus that weighs a significantly lower 3,549 lbs. The Lexus is the longest, while the Q40 is the highest. The Lexus also has the most ground clearance of 6.1 inches, followed by the Acura with 5.8 and the Infiniti with 4.9 inches of clearance. Major exterior features of the sedan are-

• High Intensity Discharge (HID) bi-functional xenon headlights 
• Automatic on/off headlights 
• Front fog lights 
• 17-inch, triple 5-spoke aluminum-alloy wheels
• LED rear brake lights and center high-mounted stoplight (CHMSL) 
• Aluminum hood with gas struts to hold the hood open 
• Power sliding tinted glass moonroof with one-touch auto-open/close, tilt feature, and sliding sunshade
• Speed-sensing flat-blade variable intermittent front windshield wipers

The new Infiniti Q40 comes with a lot of standard safety features, which include an Anti-Lock Braking System (ABS) with Electronic Brake Distribution (EBD) along with Infiniti Advanced Air Bag System (AABS), which includes dual-stage front supplemental airbags with seat belt sensors and an occupant classification sensor, front seat-mounted side-impact supplemental airbags, roof-mounted curtain side-impact supplemental airbags for front, and rear-seat outboard occupant head protection. The Q40 has not been crash-tested by NHTSA or IIHS, however, the safety features list is long to be relieved about the safety. Major safety features include-

• Zone Body construction with reinforced passenger compartment and front and rear crumple zones
• Electronic Brakeforce Distribution (EBD)
• Brake Assist (BA)
• 4-wheel Anti-lock Braking System (ABS)
• Vehicle Dynamic Control (VDC) with Traction Control System (TCS)
• Tire Pressure Monitoring System (TPMS)
• LATCH System

The 2015 Infiniti Q40 is a powerful car with dynamic handling and impressive acceleration and comes with a plethora of standard features. But that's where the factor of joy ends. It delivers below-average fuel efficiency and an interior that is surely spacious but not as luxurious as many of its rivals in the segment. So if what you want is a comparatively cheaper but impressively powerful car with agile handling and you’re ready to neglect the above-mentioned cons, then the Infiniti would be a good choice for you, otherwise, there are much better options available in the segment.