The 2018 Infiniti Q50 is a luxury compact sports sedan, part of the first generation introduced in 2014. It offers a sleek body style and a range of powerful engines, appealing to buyers seeking a blend of performance and sophistication. Key trims include Pure, Luxe, Sport, and Red Sport 400. Prices for new models ranged from approximately $35,000 to $54,000. Its aggressive styling and potent available twin-turbo V6 make it a popular choice for enthusiasts.
The Good
The 2018 Q50 offers strong performance with its available twin-turbo V6, appealing to emotional drivers. Its striking design and comfortable, well-appointed interior enhance the luxury experience. For practical buyers, it presents good value in the used market, often with decent fuel efficiency from the base engine and a reputation for solid reliability when well-maintained, combining excitement with everyday usability.
The Bad
When considering a 2018 Infiniti Q50, buyers should watch out for the Direct Adaptive Steering system, which some find less communicative. The infotainment system, while dual-screen, can feel dated and less intuitive than rivals'.
Rear seat space is adequate but not class-leading, and road noise can be noticeable at highway speeds. Maintenance costs for premium components can also be higher.
2018 Infiniti Q50: Quick Overview
The 2018 Infiniti Q50 offers a diverse range of powertrain options and trim-specific features:
- Engine Options:
- 2.0-liter turbocharged I4 (Pure, Luxe trims): 208 hp, 258 lb-ft torque.
- 3.0-liter twin-turbocharged V6 (Luxe, Sport trims): 300 hp, 295 lb-ft torque.
- 3.0-liter twin-turbocharged V6 (Red Sport 400 trim): 400 hp, 350 lb-ft torque.
- Horsepower: Ranges from 208 hp (2.0T) to 400 hp (Red Sport 400).
- Fuel Economy (EPA Estimated):
- 2.0T RWD: 23 MPG combined (20 city/29 highway).
- 2.0T AWD: 22 MPG combined (20 city/27 highway).
- 3.0T 300hp RWD: 22 MPG combined (19 city/27 highway).
- 3.0T 300hp AWD: 22 MPG combined (19 city/27 highway).
- 3.0T 400hp RWD: 22 MPG combined (20 city/26 highway).
- 3.0T 400hp AWD: 22 MPG combined (19 city/26 highway).
- 0-60 mph Times (approximate):
- 2.0T: 7.0-7.2 seconds.
- 3.0T (300hp): 5.0-5.2 seconds.
- Red Sport 400: 4.5-4.7 seconds.
- Towing Capacity: Not officially rated or recommended for towing.
- Trim-Level Features:
- Pure: Entry-level with LED headlights, dual-zone automatic climate control, dual touchscreen infotainment, rearview camera, 8-way power driver's seat.
- Luxe: Adds moonroof, HomeLink, 18-inch wheels, available navigation, and enhanced safety features like forward emergency braking.
- Sport: Builds on Luxe with a 300hp V6, sport-tuned suspension, larger brakes, sport seats, unique exterior styling, and optional Direct Adaptive Steering.
- Red Sport 400: Top-tier performance with 400hp V6, upgraded brakes, adaptive dampers, sport exhaust, unique Red Sport badging, 19-inch staggered wheels, and comprehensive driver-assistance options.
2018 Infiniti Q50 Specifications
Vehicle Information
| Year | 2018 |
| Make | Infiniti |
| Model | Q50 |
| Trim | - |
| Style | - |
| Type | Sedan |
| Category | Compact Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | CANTON |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | 5 |
Engine & Performance
| Engine | 3-L V-6 gasoline direct injection, dohc, variable valve control, |
| Engine Size | 3L |
| Engine Cylinders | 6 |
| Transmission | 7-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 7-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | Standard |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2018 Infiniti Q50 Have?
The 2018 Infiniti Q50, while generally reliable, has some frequently reported issues and long-term concerns worth noting. A prominent area of concern for some owners involves the Direct Adaptive Steering (DAS) system, which, while innovative, can sometimes feel disconnected or exhibit occasional glitches, requiring software updates or recalibration. While not a widespread failure, it's a common complaint about its feel.
Another recurring theme revolves around the infotainment system. The dual-screen setup can be complex and some users report lag or unresponsiveness, and the graphics are considered dated compared to competitors. While the system itself is robust, the user experience can be frustrating.
Engine-wise, the 3.0-liter twin-turbo V6 (VR30DDTT) is largely reliable but some early iterations across various model years (including potential bleed-over into 2018, though less common than 2016-2017) had reports of turbocharger issues, primarily due to issues with the turbo speed sensor or wastegate actuators, leading to reduced power or limp mode. It's crucial to ensure proper oil change intervals and general maintenance for these forced-induction engines. There have also been isolated reports of engine oil leaks, often from the timing chain cover or oil pan gasket, which are typically minor but require attention.
Regarding recalls, the 2018 Q50 had several. One significant recall (NHTSA Campaign Number 18V505000) involved the fuel pump module, where the pump's impeller could swell and interfere with its operation, potentially causing the engine to stall. Another recall (NHTSA Campaign Number 18V601000) addressed the Direct Adaptive Steering (DAS) system's software, which could unexpectedly deactivate and revert to conventional steering without warning during certain maneuvers. Owners of 2018 models should verify these recalls have been addressed. General long-term reliability largely depends on diligent maintenance; skipping oil changes or neglecting cooling system care can prematurely age components like turbos or seals. Suspension components like control arm bushings may also wear over extended mileage, common for performance sedans.
Another recurring theme revolves around the infotainment system. The dual-screen setup can be complex and some users report lag or unresponsiveness, and the graphics are considered dated compared to competitors. While the system itself is robust, the user experience can be frustrating.
Engine-wise, the 3.0-liter twin-turbo V6 (VR30DDTT) is largely reliable but some early iterations across various model years (including potential bleed-over into 2018, though less common than 2016-2017) had reports of turbocharger issues, primarily due to issues with the turbo speed sensor or wastegate actuators, leading to reduced power or limp mode. It's crucial to ensure proper oil change intervals and general maintenance for these forced-induction engines. There have also been isolated reports of engine oil leaks, often from the timing chain cover or oil pan gasket, which are typically minor but require attention.
Regarding recalls, the 2018 Q50 had several. One significant recall (NHTSA Campaign Number 18V505000) involved the fuel pump module, where the pump's impeller could swell and interfere with its operation, potentially causing the engine to stall. Another recall (NHTSA Campaign Number 18V601000) addressed the Direct Adaptive Steering (DAS) system's software, which could unexpectedly deactivate and revert to conventional steering without warning during certain maneuvers. Owners of 2018 models should verify these recalls have been addressed. General long-term reliability largely depends on diligent maintenance; skipping oil changes or neglecting cooling system care can prematurely age components like turbos or seals. Suspension components like control arm bushings may also wear over extended mileage, common for performance sedans.
How long will the 2018 Infiniti Q50 last?
Based on owner data and typical maintenance habits, a well-cared-for 2018 Infiniti Q50 can reliably achieve 150,000 to 200,000 miles or more, equating to 10-15 years of service. Its core powertrain, especially the VR30DDTT V6, is generally robust with proper oil changes and preventative maintenance. Long-term durability is solid, though certain weaknesses emerge over time. Suspension components like control arm bushings and struts may require replacement around 80,000-100,000 miles, common for performance vehicles. The infotainment system's dated nature becomes more pronounced, and potential electrical glitches are not unheard of. Proactive maintenance, especially for turbocharger health and fluid changes, is key to maximizing its lifespan and mitigating age-related weaknesses.
What Technology & Safety Features are Included?
The 2018 Infiniti Q50 comes equipped with a suite of built-in technology, entertainment, and safety features, offering a blend of convenience and protection.
Infotainment and Entertainment:
At its core is the Infiniti InTouch dual-screen infotainment system. The upper 8-inch screen primarily handles navigation and vehicle information, while the lower 7-inch touchscreen manages audio, climate, and apps. Standard features include Bluetooth, two USB ports, HD Radio, satellite radio, and a six-speaker audio system. Available upgrades include a 16-speaker Bose Performance Series audio system, Infiniti InTouch Navigation with voice recognition, and mobile apps.
Driver-Assistance and Safety Features:
Standard safety features for all trims include a rearview camera, forward collision warning, and automatic emergency braking. As you move up the trim levels or opt for packages, a comprehensive suite of advanced driver-assistance systems (ADAS) becomes available:
Crash Test Ratings:
The 2018 Infiniti Q50 received strong crash test ratings. The National Highway Traffic Safety Administration (NHTSA) awarded the Q50 a 5-Star Overall Safety Rating. The Insurance Institute for Highway Safety (IIHS) gave it good ratings in most crashworthiness tests, but headlight performance varied by trim, with some ratings as "Poor." Models equipped with specific frontal crash prevention technology received a "Superior" rating.
Infotainment and Entertainment:
At its core is the Infiniti InTouch dual-screen infotainment system. The upper 8-inch screen primarily handles navigation and vehicle information, while the lower 7-inch touchscreen manages audio, climate, and apps. Standard features include Bluetooth, two USB ports, HD Radio, satellite radio, and a six-speaker audio system. Available upgrades include a 16-speaker Bose Performance Series audio system, Infiniti InTouch Navigation with voice recognition, and mobile apps.
Driver-Assistance and Safety Features:
Standard safety features for all trims include a rearview camera, forward collision warning, and automatic emergency braking. As you move up the trim levels or opt for packages, a comprehensive suite of advanced driver-assistance systems (ADAS) becomes available:
- Predictive Forward Collision Warning: Can "see" two cars ahead.
- Blind Spot Warning and Intervention: Alerts and can guide the vehicle back into its lane.
- Lane Departure Warning and Prevention: Alerts and can gently steer the vehicle back.
- Backup Collision Intervention: Automatically brakes if an obstacle is detected while backing up.
- Rear Cross Traffic Alert: Warns of approaching vehicles when backing out of a parking spot.
- Adaptive Cruise Control: Maintains a set distance from the vehicle ahead.
- Around View Monitor with Moving Object Detection: Provides a 360-degree bird's-eye view.
- Direct Adaptive Steering (DAS): An optional steer-by-wire system.
- Active Lane Control: Works with DAS to keep the vehicle centered in its lane.
Crash Test Ratings:
The 2018 Infiniti Q50 received strong crash test ratings. The National Highway Traffic Safety Administration (NHTSA) awarded the Q50 a 5-Star Overall Safety Rating. The Insurance Institute for Highway Safety (IIHS) gave it good ratings in most crashworthiness tests, but headlight performance varied by trim, with some ratings as "Poor." Models equipped with specific frontal crash prevention technology received a "Superior" rating.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2018 Infiniti Q50 Prices and Market Value
When new, the 2018 Infiniti Q50 had a manufacturer's suggested retail price (MSRP) ranging from approximately $35,000 for the base Pure 2.0t RWD to over $54,000 for a fully loaded Red Sport 400 AWD. Today, current used market prices vary significantly based on trim, mileage, condition, and region. Expect to find models ranging from roughly $15,000 for a higher-mileage 2.0t Pure to $28,000+ for a well-maintained, lower-mileage Red Sport 400.
The Q50 experiences moderate depreciation, typical for luxury sedans. Factors affecting resale value include the specific engine (V6 models, especially Red Sport 400, hold value better), optional packages (like navigation or advanced safety), maintenance history, and overall cosmetic condition. Infiniti models, in general, tend to depreciate faster than some German rivals, offering better used value but less strong resale.
The Q50 experiences moderate depreciation, typical for luxury sedans. Factors affecting resale value include the specific engine (V6 models, especially Red Sport 400, hold value better), optional packages (like navigation or advanced safety), maintenance history, and overall cosmetic condition. Infiniti models, in general, tend to depreciate faster than some German rivals, offering better used value but less strong resale.
2018 Infiniti Q50 Cost of Ownership
Long-term ownership of a 2018 Infiniti Q50 generally leans towards being moderately costly, rather than economical. Insurance costs are typically higher than average for luxury sports sedans, especially for the high-performance Red Sport 400. Fuel costs are manageable for the 2.0T but rise with the V6 engines requiring premium gasoline. Routine maintenance, while not excessive, involves premium parts and labor, contributing to higher service bills compared to non-luxury vehicles. Potential repair costs, particularly for complex components like turbos or the Direct Adaptive Steering system, can be substantial if issues arise. Overall, while a good value used, it demands a higher budget for ongoing ownership expenses.
2018 Infiniti Q50 Fuel Efficiency
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Gasoline
Fuel Capacity
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City Mileage
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2018 Infiniti Q50 Safety Rating
NHTSA
2018 Infiniti Q50 Insurance
Insurance for a 2018 Infiniti Q50 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2018 Infiniti Q50 Compare to Other Sedan?
The 2018 Infiniti Q50 competes in a fiercely contested segment against strong rivals like the BMW 3 Series, Mercedes-Benz C-Class, Audi A4, Lexus IS, and Cadillac ATS.
Performance: The Q50 excels with its available 3.0-liter twin-turbo V6, especially the 400hp Red Sport 400, which often outperforms base engines of rivals and offers comparable power to higher-tier German performance models at a lower price point. However, the 2.0T base engine is less inspiring. Rivals like the BMW 340i and Mercedes-AMG C43 offer similarly engaging performance, often with more refined chassis dynamics and superior steering feel (especially compared to the Q50's DAS). The Lexus IS provides bulletproof reliability but is often less powerful and dynamically engaging.
Features: The Q50's dual-screen infotainment system was innovative but now feels dated and less intuitive than systems from Audi (MMI), BMW (iDrive), or Mercedes (COMAND/NTG). While it offers a good range of standard and optional tech, the user interface isn't as polished. Cabin materials are generally good but may not match the sheer luxury or build quality of a C-Class or A4.
Reliability: The Q50, particularly with the V6 engines, generally has a good reputation for reliability, though earlier V6 models had some turbo concerns. It often rates similarly or slightly above German rivals in consumer surveys, though below Lexus. German cars can be more prone to expensive electrical issues with age.
Price: This is where the Q50 truly stands out. Both new and on the used market, it offers significantly more power and luxury features for the money compared to its German counterparts. A Red Sport 400 can be found for the price of a mid-tier 3 Series or C-Class with less performance.
Alternatives:
The Q50 is a compelling choice for those prioritizing raw power and value, willing to overlook some infotainment quirks.
Performance: The Q50 excels with its available 3.0-liter twin-turbo V6, especially the 400hp Red Sport 400, which often outperforms base engines of rivals and offers comparable power to higher-tier German performance models at a lower price point. However, the 2.0T base engine is less inspiring. Rivals like the BMW 340i and Mercedes-AMG C43 offer similarly engaging performance, often with more refined chassis dynamics and superior steering feel (especially compared to the Q50's DAS). The Lexus IS provides bulletproof reliability but is often less powerful and dynamically engaging.
Features: The Q50's dual-screen infotainment system was innovative but now feels dated and less intuitive than systems from Audi (MMI), BMW (iDrive), or Mercedes (COMAND/NTG). While it offers a good range of standard and optional tech, the user interface isn't as polished. Cabin materials are generally good but may not match the sheer luxury or build quality of a C-Class or A4.
Reliability: The Q50, particularly with the V6 engines, generally has a good reputation for reliability, though earlier V6 models had some turbo concerns. It often rates similarly or slightly above German rivals in consumer surveys, though below Lexus. German cars can be more prone to expensive electrical issues with age.
Price: This is where the Q50 truly stands out. Both new and on the used market, it offers significantly more power and luxury features for the money compared to its German counterparts. A Red Sport 400 can be found for the price of a mid-tier 3 Series or C-Class with less performance.
Alternatives:
- For Value & Performance: Cadillac ATS-V (more performance focus), Genesis G70 (newer, better tech, similar value).
- For Refinement & Tech: Audi A4, Mercedes-Benz C-Class (superior interiors, tech).
- For Ultimate Reliability: Lexus IS (sacrifices some performance for peace of mind).
- For Driving Dynamics: BMW 3 Series (especially with M Sport package), Alfa Romeo Giulia.
The Q50 is a compelling choice for those prioritizing raw power and value, willing to overlook some infotainment quirks.
Final Verdict: Is the 2018 Infiniti Q50 a Good Sedan?
The 2018 Infiniti Q50 is ideal for buyers seeking a powerful and stylish luxury sports sedan without the premium price tag of its German rivals. It's particularly suited for driving enthusiasts who prioritize strong acceleration and a distinctive exterior design. It's worth buying, especially as a used vehicle, where its depreciation makes it an excellent value proposition.
Consider the 3.0T (300hp) Luxe or Sport trims for a fantastic balance of performance, features, and comfort. The Red Sport 400 is ideal for those who demand maximum power and don't mind the slightly firmer ride. However, be prepared for potentially higher insurance and maintenance costs, typical of a luxury performance vehicle. Avoid the 2.0T if spirited driving is a priority. Ensure any used purchase has a thorough pre-purchase inspection and a clear service history, especially concerning recalls.
Consider the 3.0T (300hp) Luxe or Sport trims for a fantastic balance of performance, features, and comfort. The Red Sport 400 is ideal for those who demand maximum power and don't mind the slightly firmer ride. However, be prepared for potentially higher insurance and maintenance costs, typical of a luxury performance vehicle. Avoid the 2.0T if spirited driving is a priority. Ensure any used purchase has a thorough pre-purchase inspection and a clear service history, especially concerning recalls.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.