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BMW Z4 vs. Lexus IS MPG

Chart is based on 87 fuel economy reports for the BMW Z4 and 143 fuel economy reports for the Lexus IS.

BMW Z4 MPG

BMW Z4 BMW Z4 2011 22.8 MPG Highway Percentage 45 percent BMW Z4 BMW Z4 2010 24.0 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2010 24.7 MPG Highway Percentage 77 percent BMW Z4 BMW Z4 2009 19.6 MPG Highway Percentage 19 percent BMW Z4 BMW Z4 2009 26.5 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2008 27.4 MPG Highway Percentage 100 percent BMW Z4 BMW Z4 2008 24.2 MPG Highway Percentage 80 percent BMW Z4 BMW Z4 2008 29.8 MPG Highway Percentage 75 percent BMW Z4 BMW Z4 2007 20.0 MPG Highway Percentage 42 percent BMW Z4 BMW Z4 2007 26.6 MPG Highway Percentage 69 percent BMW Z4 BMW Z4 2007 26.7 MPG Highway Percentage 47 percent BMW Z4 BMW Z4 2007 18.0 MPG Highway Percentage 27 percent BMW Z4 BMW Z4 2007 25.7 MPG Highway Percentage 25 percent BMW Z4 BMW Z4 2007 30.6 MPG Highway Percentage 70 percent BMW Z4 BMW Z4 2006 28.2 MPG Highway Percentage 25 percent BMW Z4 BMW Z4 2006 26.7 MPG Highway Percentage 50 percent BMW Z4 BMW Z4 2006 17.7 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2006 27.0 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2006 25.2 MPG Highway Percentage 32 percent BMW Z4 BMW Z4 2006 27.4 MPG Highway Percentage 55 percent BMW Z4 BMW Z4 2005 28.1 MPG Highway Percentage 75 percent BMW Z4 BMW Z4 2005 21.4 MPG Highway Percentage 43 percent BMW Z4 BMW Z4 2005 23.0 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2004 26.8 MPG Highway Percentage 21 percent BMW Z4 BMW Z4 2004 27.0 MPG Highway Percentage 67 percent BMW Z4 BMW Z4 2004 29.1 MPG Highway Percentage 10 percent BMW Z4 BMW Z4 2003 27.2 MPG Highway Percentage 53 percent BMW Z4 BMW Z4 2003 26.8 MPG Highway Percentage 20 percent BMW Z4 BMW Z4 2003 25.6 MPG Highway Percentage 40 percent BMW Z4 BMW Z4 2003 34.4 MPG Highway Percentage 68 percent BMW Z4 BMW Z4 2003 26.1 MPG Highway Percentage 60 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 MPG
2011 2dr Hardtop conv. turbocharged 335hp 3.0L I6
7-speed automated manual RWD
hills med light 0 20 35 45 70 22.8  
2010 2dr Hardtop conv. turbocharged 300hp 3.0L I6
7-speed automated manual RWD
flat med light 5 15 60 20 80 24.0  
2010 2dr Hardtop conv. turbocharged 300hp 3.0L I6
6-speed manual RWD
flat lead light 3 0 20 77 72 24.7  
2009 2dr Hardtop conv. turbocharged 300hp 3.0L I6
7-speed automated manual RWD
hills med hvy 10 5 67 19 120 19.6  
2009 2dr Hardtop conv. 255-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat med hvy 9 9 27 55 70 26.5  
2008 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD
flat light light 0 0 0 100 73 27.4  
2008 2dr Convertible 255-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat light none 0 10 10 80 100 24.2  
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2008 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat med hvy 17 3 6 75 75 29.8  
2007 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD
flat med none 8 22 28 42 65 20.0  
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat lead light 8 15 8 69 68 26.6  
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD
flat med light 12 16 25 47 72 26.7  
2007 2dr Convertible 330-horsepower 3.2L I6
6-speed manual RWD
flat lead none 50 17 7 27 75 18.0  
2007 2dr Convertible 255-horsepower 3.0L I6
6-speed manual RWD
flat med light 7 22 47 25 60 25.7  
2007 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat light hvy 1 4 25 70 70 30.6  
2006 2dr Hatch 255-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat light none 0 15 60 25 70 28.2  
2006 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD
flat med light 10 10 30 50 65 26.7  
2006 2dr Convertible 330-horsepower 3.2L I6
6-speed manual RWD
flat med none 8 46 25 20 78 17.7  
2006 2dr Convertible 255-horsepower 3.0L I6
6-speed shiftable automatic RWD
flat med hvy 0 0 45 55 60 27.0  
2006 2dr Convertible 255-horsepower 3.0L I6
6-speed manual RWD
flat med light 2 28 38 32 70 25.2  
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD
flat med light 7 13 25 55 74 27.4  
2005 2dr Convertible 225-horsepower 3.0L I6
5-speed shiftable automatic RWD
hills med light 1 1 23 75 65 28.1  
2005 2dr Convertible 184-horsepower 2.5L I6
5-speed shiftable automatic RWD
flat lead hvy 15 25 18 43 60 21.4  
2005 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD
hills light none 10 40 30 20 65 23.0  
2004 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD
flat med none 4 20 55 21 67 26.8  
2004 2dr Convertible 184-horsepower 2.5L I6
5-speed shiftable automatic RWD
flat med hvy 0 0 33 67 70 27.0  
2004 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD
flat light none 0 10 80 10 65 29.1  
2003 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD
flat med light 8 8 30 53 70 27.2  
2003 2dr Convertible 225-horsepower 3.0L I6
6-speed automated manual RWD
flat light light 10 20 50 20 60 26.8  
2003 2dr Convertible 225-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 20 20 20 40 60 25.6  
2003 2dr Convertible 184-horsepower 2.5L I6
6-speed automated manual RWD
flat light light 8 5 20 68 70 34.4  
2003 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD
flat med none 2 7 31 60 77 26.1  

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This page shows only averages. See all the BMW Z4 fuel economy data.

Lexus IS MPG

Lexus IS Lexus IS 2016 18.7 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2010 20.3 MPG Highway Percentage 2 percent Lexus IS Lexus IS 2010 21.8 MPG Highway Percentage 15 percent Lexus IS Lexus IS 2010 20.3 MPG Highway Percentage 44 percent Lexus IS Lexus IS 2009 25.4 MPG Highway Percentage 57 percent Lexus IS Lexus IS 2009 27.0 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2008 17.7 MPG Highway Percentage 28 percent Lexus IS Lexus IS 2008 24.9 MPG Highway Percentage 40 percent Lexus IS Lexus IS 2008 31.0 MPG Highway Percentage 55 percent Lexus IS Lexus IS 2008 22.4 MPG Highway Percentage 21 percent Lexus IS Lexus IS 2008 20.5 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2007 24.6 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2007 31.8 MPG Highway Percentage 80 percent Lexus IS Lexus IS 2007 25.3 MPG Highway Percentage 45 percent Lexus IS Lexus IS 2006 22.1 MPG Highway Percentage 30 percent Lexus IS Lexus IS 2006 24.9 MPG Highway Percentage 47 percent Lexus IS Lexus IS 2006 24.0 MPG Highway Percentage 65 percent Lexus IS Lexus IS 2005.5 23.3 MPG Highway Percentage 60 percent Lexus IS Lexus IS 2005 15.9 MPG Highway Percentage 11 percent Lexus IS Lexus IS 2004 19.0 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2004 21.1 MPG Highway Percentage 66 percent Lexus IS Lexus IS 2004 24.0 MPG Highway Percentage 48 percent Lexus IS Lexus IS 2003 19.6 MPG Highway Percentage 41 percent Lexus IS Lexus IS 2003 23.4 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2002 21.7 MPG Highway Percentage 26 percent Lexus IS Lexus IS 2002 19.6 MPG Highway Percentage 35 percent Lexus IS Lexus IS 2002 21.5 MPG Highway Percentage 23 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 MPG
2016 4dr Sedan 306-horsepower 3.5L V6
8-speed shiftable automatic RWD
flat light light 50 10 20 20 70 18.7  
2010 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD
flat med light 0 0 98 2 80 20.3  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat med light 5 70 10 15 60 21.8  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills med none 7 16 33 44 83 20.3  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat light none 2 9 33 57 90 25.4  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills light light 5 5 20 70 65 27.0  
2008 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD
flat med hvy 20 25 27 28 70 17.7  
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2008 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
hills med none 16 20 25 40 66 24.9  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat v.lt light 15 15 15 55 70 31.0  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
flat light light 4 18 57 21 61 22.4  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD
flat med light 8 63 10 20 110 20.5  
2007 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
flat med light 6 21 23 50 75 24.6  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat light hvy 5 5 10 80 70 31.8  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
flat light light 5 23 28 45 63 25.3  
2006 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
flat med light 7 50 13 30 71 22.1  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat med light 9 25 20 47 88 24.9  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills light light 5 5 25 65 70 24.0  
2005.5 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD
flat med none 20 20 0 60 80 23.3  
2005 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 41 49 0 11 59 15.9  
2004 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat lead hvy 20 15 15 50 75 19.0  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 1 27 6 66 77 21.1  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med light 7 29 16 48 71 24.0  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 9 33 18 41 88 19.6  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med none 0 0 30 70 75 23.4  
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 12 19 43 26 80 21.7  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 10 40 15 35 68 19.6  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med light 15 24 39 23 73 21.5  

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This page shows only averages. See all the Lexus IS fuel economy data.

BMW Z4 vs. Lexus IS MPG

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 BMW Z4 and Lexus IS's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all Hatchbacks and Convertibles.
See TrueDelta's information for all BMW models and Lexus models.

What Our Members Are Saying about the Real Gas Mileage of the BMW Z4

BMW Z4 Real Gas Mileage: Pros
YearBody/PowertrainComment
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD
it gets better fuel economy than the M coupe, but still out performs the 2.5i and 3.0i models. see full BMW Z4 review
2007 2dr Convertible 215-horsepower 3.0L I6
6-speed shiftable automatic RWD
Fuel economy is great. Getting 30 to 33 mpg on trips on 2 lane rural highways at 65 to 70 mph. see full BMW Z4 review
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD
Around town I get about 23 mpg but on the open highway, get 30 to 32 mpg which is huge since the Z only uses premium grade gas. see full BMW Z4 review
2004 2dr Convertible 225-horsepower 3.0L I6
6-speed manual RWD
Average 26-27mpg combined city/highway in daily commuter driving (no expressway)...even with some spirited driving. see full BMW Z4 review
BMW Z4 Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 2dr Hatch 330-horsepower 3.2L I6
6-speed manual RWD
City driving only about 17 MPG; highway driving 21 MPG see full BMW Z4 review
 

TrueDelta Reviews the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Cons
YearComment
The 2014 IS 350 manages 19 mpg in the EPA city test, and 28 in the highway test. While these figures tie those for the Cadillac ATS 3.6, they're short of the 23/33 achieved by the BMW 335i. Also, with both the BMW and the Cadillac you can step down to more efficient turbocharged four-cylinder engines. With the new IS, your only other engine option is a small V6, and its fuel economy is only a couple mpg better than that of the big V6 (21/30). The BMW has a further advantage: you can set the steering and suspension to "Sport" without forcing the transmission to hold a lower gear. In the 2014 IS 350 F Sport, the sport modes are "all or nothing." Select one to firm up the steering and suspension, and the transmission won't shift beyond sixth gear, reducing fuel economy. Lexus should follow Audi's lead and offer an "Individual" mode, where each system (powertrain, steering, suspension, etc.) can be set separately. see full Lexus IS review
 

What Our Members Are Saying about the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
Almost as good as Prius, this is the hybrid 250h see full Lexus IS review
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Our 2010 IS 250 has given us 30 mph highway mileage. I consider it very very good. see full Lexus IS review
2009 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
Excellent fuel economy... overall 24 mpg city and highway combined. As high as 32 mpg highway driving in Arizona mountains. see full Lexus IS review
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Good highway fuel economy, can average 30+ mpg see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
My real world economy has been 33 mpg hwy (not the computer figure, an optimistic 34.5-35)which is better than expected and slightly over 20 in city driving (not heavy traffic), also better than expected see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Good fuel economy for a 1600kg car with AWD. see full Lexus IS review
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
At around 200hp, it isnt the fastest luxury sedan. However, on my roadtrip across the eastern / mid eastern USA I was able to get ~33 ish mpg (computer reported) on flat terrain and premium fuel. City mpg is what I expect,22-25ish. But I think it is great as a long distance comfortable vehicle. see full Lexus IS review
Lexus IS Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
Wish it got better fuel economy for such a small car and engine... Sticker is 21/29, I'm averaging 27MPG (computer read); avg on hwy is about 33-34 mpg while city is about 19-23mpg. Engine variety would help, a 4 cyl + turbo or something, but toyota/lexus isn't exactly known for that. see full Lexus IS review
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
For a small, relatively modestly powered car, it gets poor economy. Corvettes and most Porsches get better economy. see full Lexus IS review