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Infiniti Q50 vs. Cadillac STS Fuel Economy (km/L)

Chart is based on 3 fuel economy reports for the Infiniti Q50 and 28 fuel economy reports for the Cadillac STS.

Infiniti Q50 km/L

Infiniti Q50 Infiniti Q50 2014 57.4 MPG Highway Percentage 70 percent Infiniti Q50 Infiniti Q50 2014 68.9 MPG Highway Percentage 86 percent Infiniti Q50 Infiniti Q50 2014 58.8 MPG Highway Percentage 40 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd km/L
2014 4dr Sedan 328-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med light 0 20 10 70 70 57.4  
2014 4dr Sedan 302-horsepower 3.5L V6 Hybrid
7-speed shiftable automatic RWD		 flat med light 5 5 5 86 75 68.9  
2014 4dr Sedan 302-horsepower 3.5L V6 Hybrid
7-speed shiftable automatic AWD		 flat med light 5 15 40 40 80 58.8  

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This page shows only averages. See all the Infiniti Q50 fuel economy data.

Cadillac STS km/L

Cadillac STS Cadillac STS 2008 47.2 MPG Highway Percentage 90 percent Cadillac STS Cadillac STS 2008 51.1 MPG Highway Percentage 50 percent Cadillac STS Cadillac STS 2007 51.8 MPG Highway Percentage 28 percent Cadillac STS Cadillac STS 2006 57.6 MPG Highway Percentage 100 percent Cadillac STS Cadillac STS 2006 47.1 MPG Highway Percentage 60 percent Cadillac STS Cadillac STS 2006 44.7 MPG Highway Percentage 20 percent Cadillac STS Cadillac STS 2005 48.3 MPG Highway Percentage 53 percent Cadillac STS Cadillac STS 2005 21.0 MPG Highway Percentage 40 percent Cadillac STS Cadillac STS 2005 49.4 MPG Highway Percentage 45 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd km/L
2008 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic AWD		 flat v.lt light 0 10 0 90 60 47.2  
2008 4dr Sedan 302-horsepower 3.6L V6
6-speed shiftable automatic RWD		 flat med light 9 11 30 50 73 51.1  
2007 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic RWD		 flat med light 3 50 20 28 70 51.8  
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 mtns light none 0 0 0 100 65 57.6  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 20 9 10 60 67 47.1  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic AWD		 flat light none 0 45 35 20 60 44.7  
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 flat med light 0 3 43 53 67 48.3  
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2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 flat med light 10 45 5 40 70 21.0  
2005 4dr Sedan 255-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat light light 5 20 30 45 60 49.4  

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This page shows only averages. See all the Cadillac STS fuel economy data.

Infiniti Q50 vs. Cadillac STS Fuel Economy (km/L)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Infiniti Q50 and Cadillac STS's where a car was driven. So you can get an idea of their real-world km/L based on how and where you drive a car.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Infiniti models and Cadillac models.

TrueDelta Reviews the Real Gas Mileage of the Infiniti Q50

Infiniti Q50 Real Gas Mileage: Cons
YearComment
With EPA ratings of 19 mpg city and 27 mpg highway, the Q50 AWD falls short of the BMW's scores (21/31). But it's on par (or better) compared to the others. If fuel economy is a priority then the Q50 Hybrid is the way to go, with EPA ratings of 29/36 with rear-wheel-drive and 28/34 with all-wheel-drive. Opt for the S variant and these numbers take a bit of a hit, to 28/34 with RWD and 27/31 with AWD. BMW also offers a hybrid, but not with AWD, and it's not as fuel efficient (25/33). The Q50S Hybrid costs another $1,850. Quite reasonable, as it's not only more efficient, but also torquier and quicker. More of an issue: it weighs more, which likely impacts handling, and the battery pack reduces trunk volume to a class-trailing 9.4 cubic feet. see full Infiniti Q50 review
 

What Our Members Are Saying about the Real Gas Mileage of the Infiniti Q50

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What Our Members Are Saying about the Real Gas Mileage of the Cadillac STS

Cadillac STS Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 16 city/21 highway. Buy it only if you can afford it with out complaining. see full Cadillac STS review
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 This car is thirsty. I live in flat country and I get 15 mpg with 80% highway traffic. I only get 19 mpg on trips. It probably needs a 6th speed overdive for the highway. see full Cadillac STS review