2018 Infiniti Q50


Ranked #12 in Compact Sedan

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Starting MSRP 

$35,200 - $42,650

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Key Spec of 2018 Infiniti Q50
fuel economy


fuel type

Premium Unleaded (required)


208 hp @ 5500 rpm

basic warranty

4 yr./ 60000 mi.

ProsConsWhat's New

Agile handling

No smartphone integration

Renamed trims

Comfortable interior

Average fuel economy

Refreshed exterior styling

Powerful V6

Dated cabin styling

More available driver aids

Very few standard safety features

Decent reliability

2018 Infiniti Q50 Price, Review, Ratings and Pictures

Updated on: December 28, 2021

Nathan Dyer's image
Nathan Dyer 

Senior Editor

The 2018 Infiniti Q50 is available for sale with its price ranging between $35,200 and $42,650. This year, Infiniti has renamed the Q50's trim levels Pure, Luxe, and Sport but the specs and features remain the same. Two engines are on offer for the Q50- a 208-hp turbo-4 and a 300-hp V6 engine. Both these engines offer mediocre fuel economy in their segment. 

2018 Infiniti Q50 three-quarter view

The Q50's interior is handsome, though it does not have the best interior in its class. It's spacious and also offers good trunk volume too. On the safety front, the Q50's ratings are decent but it offers a long list of safety features. It has boats low ownership costs compared to its rivals, Speaking of rivals, the Q50 goes against the Acura TLX, the BMW 3 Series, and the Lexus IS 300

2018 Infiniti Q50 Latest Updates

  • Dec' 7, 2022 : Here Are The Cheapest Infiniti Cars To Buy In 2023 Read More »
  • Dec' 1, 2022 : 2023 INFINITI Q50 Released: Gets Minor Updates Read More »
  • Oct' 10, 2022 : Nissan Crosses 5 Million Mark Mississippi Plant, Eyes EV Production In Future Read More »

Trim wise pricing breakdown

NameInvoice PriceMSRPNumber of Listings
LUXE 4dr Sedan (2.0L 4cyl Turbo 7A)$34921$3755015 Listings
LUXE 4dr Sedan AWD (2.0L 4cyl Turbo 7A)$36781$3955013 Listings
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Over All Rating


Out of 10

Notable Rankings

#12 in Compact Sedan

#18 in Luxury Sedan

#19 in Sedan

Pictures & Videos


PURE$35,200 onwards

  • Automatic wipers
  • Dual touchscreen displays
  • Dual-Zone automatic climate control
  • Keyless entry and ignition
  • Led headlights and foglights
  • Power-Adjustable front seats
  • Rearview camera
  • Selectable drive modes

LUXE$37,550 onwards

  • Adaptive cruise control
  • Premium Bose audio system

Sport$40,650 onwards

  • 19-Inch wheels
  • 60/40-Split folding rear seat
  • Heated Front Seats
  • Heated steering wheel
  • Leather upholstery

Used Infiniti Q50 For Sale

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Colors and Styles

Build Car
Black Obsidian

Expert Review, Pricing Analysis and Buying Guide

INFINITI’s philosophy of “continuous improvement” is evident in the 2018 INFINITI Q50- Motorweek

The compact luxury sedan segment is hyper-competitive but the Infiniti Q50 has managed to become one of the top offerings. It has received refreshed styling this year but that's not enough for it to overtake the German marques in terms of sales. That's because it is behind in terms of performance and features. What makes this sedan still alive is its spacious interior and athletic handling. 

Another main key factor is low ownership costs. Compared to its German rivals, the Q50 is low maintenance. The true cost to own it is calculated to be close to $9,800 per year while the average cost per mile is $0.65, which is pretty decent. When it comes to reliability, the Q50 scored 81 points in the J,D power reliability test and ranks fifth on the list below Lexus and BMW. 


Most options are bundled into packages- Autotrader

This year, Infiniti has renamed the trims for the Q50. The main trims include Pure, Luxe, and Sport but these trims get different engines. The base Pure trim starts at $36,195, including a $995 destination fee. The Pure trim comes with a turbo-4 unit while the Sport trim replaces it with a V6 engine. The Luxe model is the middle child here and gets to play with both engines.

2018 Infiniti Q50 side view

Regardless of trim, RWD configuration is standard with the AWD system available for an extra $2,000. The Q50 does not offer some essential features such as heated and ventilated front seats, navigation system, Apple CarPlay, and Android Auto, etc even on the top-end Sport trim, which fares it behind its rivals. But the Q50 is open to a decent list of optional packages to satisfy your needs. 

Trims 2.0t Pure 2.0t Luxe 3.0t Luxe 3.0t Sport
MSRP (RWD) $35,200 $37,550 $39,150 $40,650
MSRP (AWD) $37,200 $39,550 $41,150 $42,650
Featur 17-inch alloy wheels Adds/ Upgrades to 2.0t Pure trim Adds/ Upgrades to 2.0t Luxe trim Adds/ Upgrades to 3.0t Luxe trim
  Dual-touchscreen setup Moonroof Electronic power steering. 19-inch alloy wheels
  6-speaker sound system 18-inch alloy wheels   Leather upholstery
  Dual-zone automatic climate control. Maple wood interior trim   Aluminum  interior accents
  8-way power front leatherette seats     Chrome exhaust finishers
  Rearview camera     Unique front fascia
  Heated side mirrors     Sports seats w/ extendable thigh support
  Rain-sensing windshield wipers     Driver's seat adjustable side bolsters
  Keyless entry      
  Push-button start      

We Recommend

The base model lack performance for the price you pay. Therefore, we advise you to buy the 3.0t Luxe trim as it packs a powerful V6 engine. Since the Q50 lacks some essential luxury features, you also have to opt for the $2,950 Sensory and $2,650 Essential packages that add some important luxury and technological features. 

Also Read:

Engine and Performance

The Q50 is a highly competent luxury sedan that's enjoyable to drive- Edmunds

2018 Infiniti Q50 Engine and Transmission

Under the hood of the Infiniti Q50, you will see two different engines depending on the trim levels. The 2.0t models are equipped with a 2.0L turbo inline-4 engine that develops 208 hp and 258 lb-ft. of torque. On the flip side, the 3.0t models come with a 3.0L twin-turbo V6 that makes a healthy 300 hp and 295 lb-ft. of torque. 

2018 Infiniti Q50 engine

Power flows through a 7-speed automatic transmission and both RWD and AWD configurations are available in the Q50. The transmission's got downshift rev-matching but it does not have paddle shifters. The base engine is not particularly refined. It's got a direct injection and that creates diesel-like clatter that is faintly audible. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

MSRP $35,200 $40,250 $33,000 $38,210
Engine 2.0L Turbo Inline-4 2.0L Turbo Inline-4 2.4L Inline-4 2.0L Turbo Inline-4
Drivetrain RWD RWD FWD RWD
Transmission 7-Speed Automatic 8-Speed Automatic 8-Speed Automatic 8-Speed Automatic
Power 208 hp @ 5,500 RPM 248 hp @ 5,200 RPM 206 hp @ 6,800 RPM 241 hp @ 5,800 RPM
Torque 258 lb-ft. @ 1,500 RPM 258 lb-ft. @ 1,450 RPM 182 lb-ft. @ 4,500 RPM 258 lb-ft. @ 1,650 RPM

The BMW 3 Series is the most powerful and expensive car. All its power is available at just 1,450 RPM, which is really great. The Lexus IS 300 gets second place with 241 horses. The Acura TLX is the only car here with an FWD configuration but makes similar power as the Q50. Also, it uses a naturally aspirated engine meaning no turbo lag and good power delivery. 

2018 Infiniti Q50 Acceleration

The Infiniti Q50 isn't particularly fast in its class as it makes less power than its class rivals. With the base engine equipped, the Q50 takes flat 7 seconds when it accelerates from 0-60 MPH while the quarter-mile mark is reached in 15.2 seconds. The top speed is limited to 120 MPH. The models with the V6 engine sprints to 60 MPH in 5.5 sec with a drag time of 13.8 seconds.

2018 Infiniti Q50 takes 7 sec to reach 60 MPH

As mentioned before, the base engine definitely does not exhibit refinement nor that seemingly limiting feeling of acceleration. The V6 delivers a good amount of power for the sedan and makes it feel lively. Therefore, buyers should stick with the V6 engine to enjoy their driving. The automatic transmission shifts precisely when required while its rec matching feature is really good. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

0-60 MPH 7.0 sec 5.9 sec 7.6 sec 6.6 sec
Quarter Mile 15.2 sec 14.3 sec 15.8 sec 15.1 sec
Engine 2.0L 2.0L 2.4L 2.0L

Top Speed

120 MPH 155 MPH 120 MPH 143 MPH

The BMW 3 Series takes the lead of the pack owing to its powerful engine. The Lexus IS 300's acceleration is slightly better than the Q50 but it could have been better. The engine in the Acura TLX is weak and therefore, it takes the longest time to complete both performance tests. 

2018 Infiniti Q50 Ride and Handling

The Q50 comes with Active Trace Control which helps to tuck the car into a turn in a tighter fashion. This kind of enhances the natural rotation of its RWD platform. The result of this is impressive handling and a controlled body motion. The suspension hides all the bumps and broken pavements to provide a comfortable ride.  

2018 Infiniti Q50 front driving view

The optional Direct Adaptive Steering system doesn't feel the way it needs to be. It needs to be lighter and more effortless at low speeds. It also needs to improve its on-center feel and on-center response at higher speeds. In general, it feels artificial at all times. Therefore, it is best to skip this feature. 

2018 Infiniti Q50 Braking 

Apart from its agile handling, another great thing about the Infiniti Q50 is its brakes. It is fitted with 12.6-inch ventilated disc brakes in the front wheels and 12.1-inch ventilated disc brakes at the back. These brakes apply enough stopping power to halt the vehicle from 60-0 MPH in 115 feet. Compared to its rivals, the Q50 takes the shortest braking distance. 

2018 Infiniti Q50 brakes

The moment you hit the brakes they act in time. That means there is zero lag and the pedal travel distance is also minimal. Also, these brakes exhibit zero fades even after repeated use, which is a good thing. The Q50 is capable of achieving more shorter braking distance through automatic emergency braking that applies strong braking pressure to stop the car immediately. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

Brakes Front 12.6 in 12.3 in  12.6 in 13.2 in
Brakes Rear 12.1 in  13.6 in 12.2 in 12.2 in
Curb Weight 3,671 lbs 3,541 lbs 3,505 lbs 3,583 lbs
60-0 MPH 115 ft. 120 ft.  118 ft. 134 ft.

The Q50 is the start of the show its impressive braking abilities. Finally, the Acura TLX manages to bring its name to the top by achieving a short braking distance. The braking performance of the BMW 3 Series is decent and it takes 120 feet to stop. The Lexus IS 300 turns out to be the one with the worst braking system. 

Also Read:

Fuel Economy

Not the most efficient sedan on the market, but the 2018 Infiniti Q50 prioritizes power without sacrificing too many mpg- The Car Connection

For a small luxury sedan, the fuel economy of the Infiniti Q50 is not that impressive. The base engine is rated at 23 MPG in the city, 30 MPG on a highway, and 25 MPG combined wheres the AWD model's combined mileage falls down by 1 MPG. The V6 models return 20 MPG in the city, 29 MPG on a highway, and 23 MPG combined. 

2018 Infiniti Q50 three-quarter view

Just like the base engine, opting for the AWD system reduces 1 MPG combined mileage. A large 20-gallon fuel tank is fitted in the Q50 and hence it can deliver 530 miles in a combined form with the base engine. The more powerful V6 models can drive up to 490 miles only, which is still more than its competitors. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

MPG (City) 23 23 23 22
MPG (Highway) 30 34 33 32
MPG (Combined) 25 27 27 26
Fuel Tank Capacity (Gallon) 20.0 15.8 17.2 17.4
Range (City/Highway/Combined; Miles) 460/600/530 363/537/450



The BMW 3 Series is the most efficient sedan in this class despite being powerful than the Q50. The fuel estimates of the Acura TLX and the Lexus IS 300 are almost the same but the former is slightly more efficient. The Q50 stands in the last place due to its efficiency but delivers the best range. 

Also Read:


The Q50 offers a good balance of luxury and sport, and the interior reflects that. The materials' quality and fit and finish are very good, and the design is a smart mix of precision and luxury- Kelley Blue Book

2018 Infiniti Q50 Seating and Comfort

One of the big selling points for the Infiniti Q50 is its interior. Between the design and quality of materials, it definitely conveys an upscale and premium ambiance. The front seats are comfortable but they are covered in synthetic leather. For leather seats, you need to buy the 3.0t Sport trim, which is a disappointment. Moreover, ventilated seats are not available while heated seats are included as an option, which is another step-down for the Q50. 

2018 Infiniti Q50 dashboard

The front row offers lots of space and therefore, it is the perfect place for six-footers. As far as the rear seat goes, the seat bottom cushion is agreeable but the backrest is reclined a bit too much. The raised transmission tunnel at the back will affect the middle-seating person's comfort. But, two full-size adults can sit comfortably without any issue. The head and legroom are less compared to the front row but the space provided is adequate for adults. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

Passenger Capacity 5 5 5 5

Front Row (Head/Shoulder/Leg) (in)

40.2/56.7/44.5 40.3/55.1/42.0 37.2/57.5/42.6 38.2/55.9/44.8

Second Row (Head/Shoulder/Leg) (in)

37.5/56.1/35.1 37.7/55.1/35.1 36.7/55.4/34.5 36.9/53.4/32.2

The Lexus IS 300 offers the least rear-seat passenger space in this competition. Therefore, adults may find sitting in the rear row uncomfortable. The shoulder room is agreeable in the Acura TLX but the legroom is again less. On the other side, the BMW 3 Series offers a good deal of space in both rows, just like the Q50. 

2018 Infiniti Q50 Infotainment System

The Infiniti Q50 comes standard with a dual-screen setup that functions on InTouch infotainment system. The upper screen measures 8 inches while the lower screen is 7 inches in size. Even though they look different, they are both touchscreens but the top screen can also be controlled with a knob next to the shifter. The main drawback of this system is the lack of smartphone integration support. 

2018 Infiniti Q50 infotainment system

All the infotainment functions including the vehicle settings are performed on the bottom screen while the top screen is reserved only for the navigation system. The optional navigation system is not detailed but it is responsive. A 7-speaker sound system is standard on all trims but the optional 16-speaker Bose premium audio system has an impressive sound quality and is a good choice for music lovers. 

2018 Infiniti Q50 Interior Features

Some of the important comfort and technological features available in the Q50's cabin are:

  • Power tilt & telescopic multi-function steering wheel 
  • 8-way power front seats
  • Leatherette & leather upholstery
  • Push-button start
  • Dual-zone automatic climate control
  • Remote engine start
  • Moonroof
  • Auto-dimming rearview mirror
  • 7 & 8-inch dual-touchscreen setup
  • 16-speaker Bose premium audio system
  • SiriusXM
  • Navigatiion system

Cargo Space

Once the trunk is opened, a cargo capacity of 13.2 cubic feet is revealed before you, which is higher than a lot of rivals. There's nothing particularly special to pint out but you can fold the rear seats. Also, Infiniti uses struts on the trunk as to not impede on the cargo area. The leftover height is low but storing large items can be tough due to the shape of the trunk. 

2018 Infiniti Q50 trunk volume

The Q50 also offers some interior storage but its competitors offer more space. The glovebox is pretty large and can be used to store a lot of small items. Upfront, you get dual cupholders that are large enough to hold your morning lattes from Starbucks. You also get a small storage cubby near the center console that can only be used to keep your phone. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

Cargo Capacity (cu-ft.) 13.2 13.0 14.3 10.8

The Acura TLX excels in this field with a maximum cargo space of 14.3 cubic feet. The BMW 3 Series is on the same level as the Q50 in terms of storage. But, the Lexus IS 300 once again disappoints with its least cargo space. Therefore, the Q50 proves to be a practical vehicle and can store up to two large suitcases.  


We’re fans of the Q50’s sporty but substantial look, which has been enhanced for 2018- Kelly Blue Book

2018 Infiniti Q50 Design and Styling

With its handsome, sharply pinned design, the Infiniti Q50 looks like nothing else. One of the main changes for 2018 is more differentiation between trim levels. That means upfront ou get a different design for sport-oriented models. The grille is mostly the same shape but you now get a deep body line that frames up the lower portion. The headlights are still fully LED and below them, you'll find LED turn signals and fog lamps set inside a graphite housing.

2018 Infiniti Q50 three-quarter view

The Q50 has a low ride height of 5.1 inches, which translates to a stable and comfortable ride. The wheel options for the Q50  include 17, 18, and 19-inch alloy wheels. Another big change can be seen at the back. The LED taillights are a lot sleeker since they have been elongated and they've got a paintbrush effect to them. Below, you get an aggressive black and body-colored rear diffuser, and housed inside of that are chrome-tipped dual exhausts. 

Models 2018 Infiniti Q50 2018 BMW 3 Series

2018 Acura TLX

2018 Lexus IS 300

Curb Weight (lbs) 3,671  3,541  3,505 3,583 
Length (in) 189.6 182.8 190.7 184.3
Width (in) 71.8 71.3 73.0 71.3
Height (in) 57.2 56.3 57.0 56.3
Ground Clearance (in) 5.1 5.5 5.8 5.3
Wheelbase (in) 112.2 110.6 109.3 110.2
Track Width (in) F/R 60.8/61.6 60.3/61.9 62.8/63.1 60.4/60.6

The Acura TLX has a short wheelbase and a raised height compared to other rivals. This impacts its rear-seat space but raised height prevents its underbody from getting scrapped. The BMW 3 Series's overall length measures only 182.8 inches. Therefore, it will be easy for the driver while maneuvering and parking in tight spots. The low height of the Lexus IS 300 affects the headroom in both rows. 

2018 Infiniti Q50 Exterior Features

Some of the noticeable exterior features of the Q50 are:

  • LED headlights & taillights
  • LED DRLs
  • LED fog lamps
  • Door courtesy lights
  • Exterior entry lights
  • Auto-dimming, heated exterior mirrors
  • Body-colored door handles with chrome accents
  • Dual exhaust chrome tips
  • Chrome grille
  • Rear lip spoiler
  • Chrome window trim
  • 17,18 & 19-inch alloy wheels

IIHS gave the Q50 it's best rating of Good in all performed crash tests- Autotrader

The Infiniti Q50 received a 'Good' rating in all the crash tests that were conducted while the front crash prevention received the top-most 'Superior' rating. However, it received an 'Acceptable' rating for its headlights. On the other hand, NHTSA rated the Q50 only for the rollover crash test for which it received five stars. 

2018 Infiniti Q50 IIHS crash test

As far as driver-assist features are concerned, the base 2.0t Pure trim comes with just a rearview camera but the rest of the trims are available with lots of features. For that, you need to upgrade to the $1,650 ProAssist and $2,700 ProActive packages that add some of the best driver aids. Some of them are:

  • Lane Departure Warning
  • Lane Keep Assist
  • Blind Spot Monitoring
  • Rear Cross-Traffic Alert
  • Surround-View Camera
  • Automatic Emergency Braking
  • Adaptive Cruise Control
  • Front & Rear Parking Sensors
  • Forward Collision Warning
  • Adaptive pivoting headlights
  • Automatic high-beam headlights

2018 Infiniti Q50 vs 2018 BMW 3 Series

The BMW 3 Series is around $5,000 costlier than the Q50 but that's definitely worth it as it delivers rapid acceleration and is also the most fuel-efficient in this class. Both the sedans offer a spacious interior but the 3 Series' infotainment system is user-friendly in nature. The 3 Series is also the Top Safety Pick by IIHS, making it one of the safe picks in this class. 

2018 BMW 3 Series

2018 Infiniti Q50 vs 2018 Acura TLX

The Acura TLX is similarly powered as the TLX but its performance can't match the Q50. However, its engines are fuel-efficient than the Q50. Inside, the materials used don't give the vibe of a luxury vehicle and the rear row feels a bit cramped but its trunk volume is great. The TLX also has great safety scores and packs more standard safety features than the Q50. 

2018 Acura TLX

2018 Infiniti Q50 vs 2018 Lexus IS 300

Starting at $38,210, the Lexus IS 300 is a powerful sedan known for its spry handling and efficiency but offers mediocre performance. Also, offers a small rear row and poor trunk volume. Its infotainment system is dated and lacks modern technological features. The IS 300 is also the garner of the Top Safety Pick award and offers more standard safety features but its strong reliability makes it stand out. 

2018 Lexus IS 300
Final Verdict

The 2018 Infiniti Q50 encases comfort, performance, technology, value in a tantalizing package. On luxury and performance, it does not match up with the German marques but Infiniti seems to have found a continuous improvement. The Q50 is not perfect but the beautiful things rarely are. 

2018 Infiniti Q50 three-quarter view


vehicle bio
base price


body style

4dr Sedan

engine type

121 cu in

horse power

208 hp @ 5500 rpm


258 lb.-ft. @ 1500 rpm


7-Speed Automatic


190 in


112 in


72 in

curb weight

3726 lbs


57 in

Ground Clearance

5 lbs

passenger volume

100 cu ft

cargo volume

13.2 cu ft

passenger capacity

5 Seats

fuel economy

23/25/30 mpg

highway range

600.00 mi

basic warranty

4 yr./ 60000 mi.

Infiniti Q50 5 year Cost To Own

Cash Price(MSRP)
5 Year Cost To Own
Total 5 year Cost To Own -  $49,874
Year 1Year 2Year 3Year 4Year 5total
Financing Interest$954$767$568$356$128$2,773
Taxes and Fees$1,514$152$140$131$122$2,059
Total Cost-To-Own$13,667$9,003$8,760$8,224$10,220$49,874
Read more about Cost-To-Own »

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