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2018 Infiniti

Q70

Auto (S7), 6 cyl, 3.7 L

Infiniti Q70: best and worst years
2018 Infiniti Q70 (photo 1 of 2)
PhotoWagon Master JohnsonCC BY-SA 4.0Wikimedia Commons

Overview

Body
Midsize CarsEPA, from EPA, last updated 6/11/2026
Drivetrain
Rear-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission
Automatic (S7)EPA, from EPA, last updated 6/11/2026
Powertrain
GasEPA, from EPA, last updated 6/11/2026
Fuel
PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

Cyl
6EPA, from EPA, last updated 6/11/2026
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/11/2026
Start-stop system
NoEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy
25 mpgEPA, from EPA, last updated 6/11/2026
MPG City
18 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb
21 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr
$3,650EPA, from EPA, last updated 6/11/2026
CO₂
433 g/miEPA, from EPA, last updated 6/11/2026
Eco Score
4/10EPA, from EPA, last updated 6/11/2026
Smog score
3/10
Elec. Range
0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified
No

Dimensions & capacity

Length
196 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Width
73 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Height
60 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Wheelbase
114 inNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Curb Weight
4,059 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/5/2026
Pass. Vol
104 ft³EPA, from EPA, last updated 6/11/2026
Cargo Vol
15 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Recalls
1
Owner complaints
1

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.

Standard

Reported problems NHTSA owner complaints, model year

  • AIR BAGS50%
  • SEAT BELTS50%

Source: NHTSA owner complaints, 2 total.

Infiniti Q70: best and worst years

Federal investigations NHTSA defect investigations, model year

  • DP22005opened Jan 27, 2023ELECTRICAL SYSTEM:PROPULSION SYSTEM

    Pedestrian alert sounds

Warranty manufacturer terms, by make

Basic
4 yr / 60k mi
Powertrain
6 yr / 70k mi
Roadside assistance
4 yr
Maintenance
3 yr

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.