Infiniti
Q70
Lexus
GS
Infiniti Q70 vs Lexus GS: 2018 Comparison
The short answer
Based on available data, the Lexus GS comes out ahead of the Infiniti Q70 on fuel economy and power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
Q70
Overall
Mixed to positive sentiment, heavily dependent on engine choice and model year. The naturally aspirated 3.7L V6 (VQ37VHR) and 5.6L V8 (VK56VD) engines are widely praised for their strong power, reliability, and longevity, with the 3.7L noted as being "rock solid" and the V8 described as "fun as shit to drive." The vehicle is appreciated for its handsome looks, comfortable and capable handling on both back roads and interstates, and spacious interior, particularly in the long-wheelbase (L) models. Significant and consistent criticism is directed at the outdated, overly complicated, and slow infotainment system and gauge cluster, which is described as feeling a generation behind competitors.
Best version to buy
2014 and newer Q70 with the 5.6L V8. This recommendation is based on mechanical quality-of-life updates that addressed known issues from the preceding M56 generation, such as the timing chain and rear-wheel steering.
Known issues
- ⚠Outdated and problematic infotainment system: described as overly complicated, slow, and a generation behind; Bluetooth connectivity issues with multiple phones. Frequency: very frequent.
- ⚠Unresponsive 7-speed automatic transmission: significant lag and delay in kick-down, especially in default and Eco modes; harsh, noticeable shifts; described as having a "dead spot" and being sluggish. Frequency: very frequent.
- ⚠Poor fuel economy: consistently reported as a downside for both the 3.7L V6 and 5.6L V8 engines. Frequency: very frequent.
GS
Overall
Overwhelmingly positive sentiment regarding long-term reliability, build quality, and overall ownership experience. The GS is consistently praised as a durable, comfortable, and well-built luxury sedan that delivers trouble-free service for many years and high mileage, with specific examples cited up to 350,000 miles. It is described as a perfect sports sedan for a broad number of use cases, offering a good balance of power, roomy comfort, and sportiness.
Best version to buy
The 2010-2011 model years for the third-generation (GS 350) are specifically highlighted as the best years. For the fourth generation, the AWD models equipped with the older 6-speed automatic transmission (over the later 8-speed) are preferred by some owners for their better drivetrain pairing.
Known issues
- ⚠Outdated technology/infotainment: Lack of Apple CarPlay, slow and unresponsive screen, missing features like birds-eye view camera and massaging seats compared to rivals. Frequency: very frequent.
- ⚠Higher running costs: Requires premium fuel, expensive tires (especially F-Sport run-flats), and generally higher costs for parts and maintenance compared to non-luxury brands. Frequency: very frequent.
- ⚠Underwhelming performance for segment: Naturally aspirated V6 (2GR-FKS) perceived as not fast, especially compared to turbocharged German competitors; 0-60 mph (0-97 km/h) times around 5.9 seconds noted. Frequency: recurrent.
The verdict
The Lexus GS is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Infiniti Q70, based on the data above. If the specific known issues on the Lexus GS are a dealbreaker, the Infiniti Q70 is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Infiniti Q70 or the Lexus GS?
Owner reports lean more positive on reliability for the Lexus GS than the Infiniti Q70. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the Infiniti Q70 or the Lexus GS?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Infiniti Q70 or the Lexus GS?
The Lexus GS is more fuel-efficient on paper: 11.2 L/100km combined versus 13.1 L/100km for the Infiniti Q70, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Infiniti Q70 or the Lexus GS?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Infiniti Q70 than the Lexus GS. See the known issues comparison above.