The 2018 Infiniti Q70, a mid-size luxury sedan, was part of a model run that began in 2010 (as the M sedan) and was rebadged and refreshed for 2014. Known for its distinctive styling, potent V6 and V8 engine options, and a blend of sporty handling with premium comfort, the Q70 appealed to buyers seeking an alternative to more common luxury marques. Key trims included the 3.7 LUXE, 3.7 SPORT, and the V8-powered 5.6 LUXE. The 2018 model year typically ranged from the mid-$30,000s to over $50,000 when new, depending on trim and options.
The Good
The 2018 Infiniti Q70 boasts a powerful V6 or V8 engine for exhilarating performance, a comfortable and well-appointed interior for luxurious journeys, and a striking design that turns heads. It offers a compelling value proposition, delivering premium features and driving dynamics at a more accessible price point than some rivals.
The Bad
Potential buyers should be aware of the Q70's somewhat dated infotainment system compared to newer competitors, a less spacious rear seat than some rivals, and an aging platform. Fuel economy, especially with the V8, can also be a consideration.
2018 Infiniti Q70: Quick Overview
- Engine Options:
- 3.7-liter V6
- 5.6-liter V8 - Horsepower:
- 3.7L V6: 328 hp @ 7,000 rpm
- 5.6L V8: 416 hp @ 5,800 rpm - Fuel Economy (EPA Estimated):
- 3.7L V6 (RWD): 18 MPG city / 26 MPG highway
- 3.7L V6 (AWD): 17 MPG city / 24 MPG highway
- 5.6L V8 (RWD): 16 MPG city / 24 MPG highway
- 5.6L V8 (AWD): 16 MPG city / 23 MPG highway - 0-60 Times (Approximate):
- 3.7L V6: Around 5.5 - 6.0 seconds
- 5.6L V8: Around 4.8 - 5.2 seconds - Towing Capacity:
- Not typically equipped for or advertised for towing. - Trim-Level Features:
3.7 LUXE:
- Leather upholstery
- Heated front seats
- Power-adjustable front seats
- Dual-zone automatic climate control
- 8-inch infotainment display with navigation
- Backup camera
- Keyless entry and ignition
- 18-inch alloy wheels
- Sunroof
3.7 SPORT:
- All LUXE features plus:
- Sport-tuned suspension
- Upgraded brakes
- Sport seats with enhanced bolstering
- Paddle shifters
- 19-inch alloy wheels
- Aluminum interior trim
5.6 LUXE:
- All LUXE features plus:
- 5.6L V8 engine
- Enhanced interior materials (e.g., premium leather)
- Available AWD on all 5.6 models.
2018 Infiniti Q70 Specifications
Vehicle Information
| Year | 2018 |
| Make | Infiniti |
| Model | Q70 |
| Trim | - |
| Style | All-Wheel Drive |
| Type | Sedan |
| Category | Mid-Size Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | TOCHIGI PLANT, KAWACHI-GUN |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | 59.60 inches |
| Overall Length | 196.10 inches |
| Overall Width | 72.60 inches |
| Wheelbase Length | 114.20 inches |
| Standard Seating | 5 |
Engine & Performance
| Engine | 3.7-L V-6 DOHC 24V |
| Engine Size | 3.7L |
| Engine Cylinders | 6 |
| Transmission | 7-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 7-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $52,450 |
| Invoice Price | $48,778 |
| Delivery Charges | $995 |
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What Problems Does the 2018 Infiniti Q70 Have?
The 2018 Infiniti Q70, while generally considered a reliable vehicle, has had a few areas that owners and automotive reviewers have noted. One common point of discussion revolves around the infotainment system, which, for its time, was seen as somewhat dated and less intuitive than competing systems from brands like BMW or Mercedes-Benz. Lag in the system and a less-than-modern interface are occasionally mentioned.
Another area for attention is the braking system. While powerful, some owners have reported premature wear on brake pads and rotors, which could lead to increased maintenance costs over the long term. This can sometimes be attributed to the vehicle's weight and performance capabilities.
Regarding electrical issues, there have been occasional reports of minor glitches with sensors, such as those for the parking assist or blind-spot monitoring, though these are not widespread. The transmission, an automatic seven-speed unit, is generally robust but has seen some isolated incidents of rough shifting or hesitant engagement, particularly at lower speeds or in stop-and-go traffic.
Infiniti issued a few recalls for the 2018 Q70. One significant recall addressed a potential issue with the occupant classification system, which could affect airbag deployment in a crash. Another recall related to the fuel pump, which might fail and cause the engine to stall. It is crucial for prospective buyers to check if these recalls have been addressed on any specific vehicle they are considering.
In terms of long-term reliability, the V6 engine in particular has a good track record. The V8, while powerful, will inherently have higher running costs and potentially more complex repairs if issues arise due to its size and technology. Overall, with regular maintenance, the 2018 Q70 should offer dependable service, but it's wise to be aware of these commonly discussed points.
Another area for attention is the braking system. While powerful, some owners have reported premature wear on brake pads and rotors, which could lead to increased maintenance costs over the long term. This can sometimes be attributed to the vehicle's weight and performance capabilities.
Regarding electrical issues, there have been occasional reports of minor glitches with sensors, such as those for the parking assist or blind-spot monitoring, though these are not widespread. The transmission, an automatic seven-speed unit, is generally robust but has seen some isolated incidents of rough shifting or hesitant engagement, particularly at lower speeds or in stop-and-go traffic.
Infiniti issued a few recalls for the 2018 Q70. One significant recall addressed a potential issue with the occupant classification system, which could affect airbag deployment in a crash. Another recall related to the fuel pump, which might fail and cause the engine to stall. It is crucial for prospective buyers to check if these recalls have been addressed on any specific vehicle they are considering.
In terms of long-term reliability, the V6 engine in particular has a good track record. The V8, while powerful, will inherently have higher running costs and potentially more complex repairs if issues arise due to its size and technology. Overall, with regular maintenance, the 2018 Q70 should offer dependable service, but it's wise to be aware of these commonly discussed points.
How long will the 2018 Infiniti Q70 last?
Based on owner data and typical maintenance, a well-maintained 2018 Infiniti Q70 can reasonably be expected to last between 150,000 and 200,000 miles, with many owners reporting continued reliable service beyond that mark. The V6 engine is particularly known for its longevity and durability. Weaknesses that may emerge over time include potential wear on suspension components and, as previously mentioned, the infotainment system's aging technology. Regular fluid changes, timely brake service, and addressing any minor electrical gremlins promptly are key to maximizing its lifespan and ensuring continued comfort and performance.
What Technology & Safety Features are Included?
The 2018 Infiniti Q70 offers a respectable array of technology, entertainment, and safety features, though some may feel a bit dated compared to the latest offerings. Standard technology includes an 8-inch color touchscreen display, Bluetooth connectivity for audio and hands-free calling, and a rearview camera. Navigation was often standard on higher trims or available as an option. The audio system typically includes a CD player, AM/FM radio, and USB/auxiliary inputs, with premium Bose audio systems available.
Driver-assistance and safety features were also well-represented, especially considering its model year. Standard safety equipment includes multiple airbags, anti-lock brakes, stability and traction control. Available or optional features that enhanced safety and convenience included front and rear parking sensors, adaptive cruise control, blind-spot monitoring, forward collision warning with automatic emergency braking, and lane departure warning.
While the infotainment system's interface might not be as slick as contemporary systems, it remained functional and provided essential connectivity. Apple CarPlay and Android Auto were not offered on the 2018 Q70, which is a notable omission for those prioritizing smartphone integration.
In terms of crash-test ratings, the 2018 Infiniti Q70 received generally good scores from the Insurance Institute for Highway Safety (IIHS). It earned a rating of "Good" in most major crashworthiness tests, including the moderate overlap front, side, roof strength, and head restraint tests. However, its headlights received a "Poor" rating, which is a common issue with vehicles from this era. The front crash prevention system, when equipped, earned a superior rating for its effectiveness in avoiding 12 mph and 25 mph front-end impacts. The National Highway Traffic Safety Administration (NHTSA) also provided ratings, with the Q70 typically achieving four out of five stars in frontal and side crash tests.
Driver-assistance and safety features were also well-represented, especially considering its model year. Standard safety equipment includes multiple airbags, anti-lock brakes, stability and traction control. Available or optional features that enhanced safety and convenience included front and rear parking sensors, adaptive cruise control, blind-spot monitoring, forward collision warning with automatic emergency braking, and lane departure warning.
While the infotainment system's interface might not be as slick as contemporary systems, it remained functional and provided essential connectivity. Apple CarPlay and Android Auto were not offered on the 2018 Q70, which is a notable omission for those prioritizing smartphone integration.
In terms of crash-test ratings, the 2018 Infiniti Q70 received generally good scores from the Insurance Institute for Highway Safety (IIHS). It earned a rating of "Good" in most major crashworthiness tests, including the moderate overlap front, side, roof strength, and head restraint tests. However, its headlights received a "Poor" rating, which is a common issue with vehicles from this era. The front crash prevention system, when equipped, earned a superior rating for its effectiveness in avoiding 12 mph and 25 mph front-end impacts. The National Highway Traffic Safety Administration (NHTSA) also provided ratings, with the Q70 typically achieving four out of five stars in frontal and side crash tests.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2018 Infiniti Q70 Prices and Market Value
When new, the 2018 Infiniti Q70 had an MSRP that typically ranged from around $50,000 for a base 3.7 LUXE model to upwards of $65,000 for a well-equipped 5.6 LUXE with AWD and optional packages. Currently, on the used market, prices for a 2018 Infiniti Q70 can vary significantly based on mileage, condition, trim level, and location, generally falling between $18,000 and $30,000. The Q70 experiences depreciation similar to many luxury sedans, with a notable drop in value in the first few years. Factors affecting its resale value include its overall reliability record, the availability of desirable features, its less common status compared to German rivals, and the condition of the interior and exterior. A well-maintained vehicle with lower mileage will command a higher price.
2018 Infiniti Q70 Cost of Ownership
The 2018 Infiniti Q70 is generally considered a moderately costly vehicle to own. Insurance premiums can be higher than average due to its luxury classification and performance capabilities. Fuel costs will vary significantly; the V6 offers acceptable but not exceptional MPG, while the V8 is a substantial fuel consumer. Maintenance costs are comparable to other luxury sedans, with specialized Infiniti parts and labor potentially being more expensive than for mainstream brands. Repair costs can also be significant if major components fail, particularly outside of the warranty period. Overall, while not as expensive as some ultra-luxury marques, it is not an economical vehicle to own and operate.
2018 Infiniti Q70 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
20.00 gallons
City Mileage
18 miles/gallon
Highway Mileage
24 miles/gallon
2018 Infiniti Q70 Safety Rating
NHTSA
2018 Infiniti Q70 Warranty
Basic
Original warranty
48 months / 60,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
72 months / 70,000 miles
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2018 Infiniti Q70 Insurance
Insurance for a 2018 Infiniti Q70 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 Q70 Compare to Other Sedan?
The 2018 Infiniti Q70 competed in the premium mid-size sedan segment against strong contenders like the BMW 5 Series, Mercedes-Benz E-Class, Audi A6, and Lexus GS.
Performance: The Q70's V6 and V8 engines offer robust power, often rivaling or exceeding the base engines of its competitors. The available V8 provides truly exhilarating acceleration. However, its handling, while sporty, might not feel as precise or engaging as a BMW 5 Series or Audi A6, which are renowned for their driving dynamics. The Lexus GS offers a similar blend of comfort and sportiness.
Features: While the Q70 came with many luxury amenities, its infotainment system and overall interior design felt a bit dated compared to the cutting-edge technology found in the newer iterations of the 5 Series, E-Class, and A6. The Lexus GS also offered a more refined and modern interior experience. However, the Q70 often provided a generous amount of standard features for its price point.
Reliability: Infiniti generally holds a good reputation for reliability, and the Q70 is no exception, often performing well in long-term reliability surveys. While some rivals, like the BMW 5 Series, can be more expensive to maintain and repair over the long haul, the Q70 offers a more dependable ownership experience in this regard, similar to the Lexus GS, which is a benchmark for reliability in this class.
Price: This is where the Q70 often shines. It typically offered more power and luxury for the money compared to its German counterparts when new, and this value proposition often extends to the used market.
Recommendations:
For buyers prioritizing ultimate driving engagement and the latest tech, the BMW 5 Series or Audi A6 might be superior, albeit at a higher cost. For exceptional reliability and a refined, comfortable ride, the Lexus GS is a very similar and highly recommended alternative. If value and strong performance are paramount, the 2018 Infiniti Q70 remains a compelling option, especially when compared to similarly priced models from other luxury brands.
Performance: The Q70's V6 and V8 engines offer robust power, often rivaling or exceeding the base engines of its competitors. The available V8 provides truly exhilarating acceleration. However, its handling, while sporty, might not feel as precise or engaging as a BMW 5 Series or Audi A6, which are renowned for their driving dynamics. The Lexus GS offers a similar blend of comfort and sportiness.
Features: While the Q70 came with many luxury amenities, its infotainment system and overall interior design felt a bit dated compared to the cutting-edge technology found in the newer iterations of the 5 Series, E-Class, and A6. The Lexus GS also offered a more refined and modern interior experience. However, the Q70 often provided a generous amount of standard features for its price point.
Reliability: Infiniti generally holds a good reputation for reliability, and the Q70 is no exception, often performing well in long-term reliability surveys. While some rivals, like the BMW 5 Series, can be more expensive to maintain and repair over the long haul, the Q70 offers a more dependable ownership experience in this regard, similar to the Lexus GS, which is a benchmark for reliability in this class.
Price: This is where the Q70 often shines. It typically offered more power and luxury for the money compared to its German counterparts when new, and this value proposition often extends to the used market.
Recommendations:
For buyers prioritizing ultimate driving engagement and the latest tech, the BMW 5 Series or Audi A6 might be superior, albeit at a higher cost. For exceptional reliability and a refined, comfortable ride, the Lexus GS is a very similar and highly recommended alternative. If value and strong performance are paramount, the 2018 Infiniti Q70 remains a compelling option, especially when compared to similarly priced models from other luxury brands.
Final Verdict: Is the 2018 Infiniti Q70 a Good Sedan?
The 2018 Infiniti Q70 is ideal for the pragmatic luxury buyer who values strong performance and premium features at a more accessible price point. It's a great choice for those who want a comfortable and stylish sedan with potent engine options but are not necessarily chasing the latest infotainment technology or the most cutting-edge driving dynamics.
It is worth buying, especially on the used market, where its value proposition becomes even more attractive. Prospective buyers should focus on mid-to-higher mileage examples that have a documented maintenance history, as this indicates good long-term durability. The 3.7 LUXE or 3.7 SPORT trims offer a good balance of features and performance without the higher running costs of the V8. While not as technologically advanced as some newer rivals, the Q70 provides a compelling blend of luxury, power, and reliability for its price.
It is worth buying, especially on the used market, where its value proposition becomes even more attractive. Prospective buyers should focus on mid-to-higher mileage examples that have a documented maintenance history, as this indicates good long-term durability. The 3.7 LUXE or 3.7 SPORT trims offer a good balance of features and performance without the higher running costs of the V8. While not as technologically advanced as some newer rivals, the Q70 provides a compelling blend of luxury, power, and reliability for its price.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.