Use these new MPG estimates to compare to 2008 and later model year vehicles. Click to Compare Old and New MPG.
Carbon footprint measures a vehicle’s impact on climate change in tons of carbon dioxide (CO2) emitted annually. The scale under each rating shows how the vehicle’s CO2 emissions compare to other vehicles. Click to learn more.
The Air Pollution score and Carbon Footprint measure different types of vehicle emissions. Air pollutants harm human health and/or cause smog. Carbon Footprint measures greenhouse gas emissions (primarily CO2) that impact climate change.
The EPA air pollution score rates cars and light trucks based on how much smog-forming air pollution they emit. Greenhouse gas emissions which may contribute to climate change are not included. Click for more info.

2009 Vehicles by Infiniti

Sorted by MPG (city), Click on column headings to resort
Select up to 4 models to compare
Carbon Footprint
(tons/yr of CO2) Info
Air Pollution
ScoreInfo
All states except
CA and NE states
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New EPA
MPG
  city  hwy
Infiniti G37 Coupe 6 cyl, 3.7 L, Automatic (S7), Premium
Infiniti G37 Coupe
8.7
NA
18
city
26
hwy
$2078
Infiniti G37 6 cyl, 3.7 L, Automatic (S7), Premium
Infiniti G37
8.7
NA
18
city
26
hwy
$2078
Infiniti G37x Coupe 6 cyl, 3.7 L, Automatic (S7), Premium
Infiniti G37x Coupe
9.2
NA
18
city
25
hwy
$2183
Infiniti G37x 6 cyl, 3.7 L, Automatic (S7), Premium
Infiniti G37x
9.2
NA
18
city
25
hwy
$2183
Infiniti G37 Coupe 6 cyl, 3.7 L, Manual 6-spd, Premium
Infiniti G37 Coupe
9.2
NA
17
city
25
hwy
$2183
Infiniti G37 6 cyl, 3.7 L, Manual 6-spd, Premium
Infiniti G37
9.2
NA
17
city
25
hwy
$2183
Infiniti G37 Convertible 6 cyl, 3.7 L, Automatic (S7), Premium
Infiniti G37 Convertible
9.2
NA
17
city
25
hwy
$2183
Infiniti M35 6 cyl, 3.5 L, Automatic (S7), Premium
Infiniti M35
9.6
score = 06
17
city
25
hwy
$2296
Infiniti EX35 6 cyl, 3.5 L, Automatic (S5), Premium
Infiniti EX35
9.6
NA
17
city
24
hwy
$2296
Infiniti G37 Convertible 6 cyl, 3.7 L, Manual 6-spd, Premium
Infiniti G37 Convertible
9.6
NA
16
city
24
hwy
$2296
Infiniti FX35 RWD 6 cyl, 3.5 L, Automatic (S7), Premium
Infiniti FX35 RWD
9.6
score = 06
16
city
23
hwy
$2296
Infiniti EX35 6 cyl, 3.5 L, Automatic (S5), Premium
Infiniti EX35
9.6
NA
16
city
23
hwy
$2296
Infiniti M35x 6 cyl, 3.5 L, Automatic (S5), Premium
Infiniti M35x
10.2
score = 06
16
city
22
hwy
$2427
Infiniti FX35 AWD 6 cyl, 3.5 L, Automatic (S7), Premium
Infiniti FX35 AWD
10.2
score = 06
16
city
21
hwy
$2427
Infiniti M45 8 cyl, 4.5 L, Automatic (S5), Premium
Infiniti M45
10.2
score = 06
16
city
21
hwy
$2427
Infiniti FX50 AWD 8 cyl, 5 L, Automatic (S7), Premium
Infiniti FX50 AWD
11.4
score = 06
14
city
20
hwy
$2728
Infiniti M45x 8 cyl, 4.5 L, Automatic (S5), Premium
Infiniti M45x
11.4
score = 06
14
city
20
hwy
$2728
Infiniti QX56 2WD 8 cyl, 5.6 L, Automatic 5-spd, Premium
Infiniti QX56 2WD
13.1
score = 06
12
city
18
hwy
$3117
Infiniti QX56 4WD 8 cyl, 5.6 L, Automatic 5-spd, Premium
Infiniti QX56 4WD
13.1
score = 06
12
city
17
hwy
$3117
 

* Based on 45% highway driving, 55% city driving, 15000 annual miles and the price of fuel used by the vehicle. You may personalize these values to reflect the price of fuel in your area and your own driving patterns.

The carbon footprint measures greenhouse gas emissions expressed in CO2 equivalents. The estimates presented here are "full fuel-cycle estimates" and include the three major greenhouse gases emitted by motor vehicles: carbon dioxide, nitrous oxide, and methane. Full fuel-cycle estimates consider all steps in the use of a fuel, from production and refining to distribution and final use. Vehicle manufacture is excluded. (U.S. Department of Energy, GREET Model 1.7, Argonne National Laboratory)