Subaru Impreza / Outback Sport vs. Cadillac CTS MPG

Chart is based on 715 fuel economy reports for the Subaru Impreza / Outback Sport and 133 fuel economy reports for the Cadillac CTS.

Subaru Impreza / Outback Sport MPG

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 Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	hills	light	light	4	9	39	47	64	34.0
2015	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	light	none	0	0	2	98	70	30.8
2014	4dr Sedan 148-horsepower 2.0L H4 CVT AWD	flat	light	none	10	17	9	65	63	28.4
2014	4dr Hatch 148-horsepower 2.0L H4 CVT AWD	flat	v.lt	none	0	5	10	85	55	32.9
2014	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	light	none	20	14	39	28	68	26.2
2013	4dr Sedan 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	med	none	0	13	14	72	71	29.0
2013	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	flat	lead	none	10	30	20	40	75	19.6
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2013	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	v.lt	light	6	14	8	72	63	32.1
2012	4dr Sedan turbocharged 305hp 2.5L H4 6-speed manual AWD	flat	med	light	0	5	12	83	68	21.8
2012	4dr Sedan 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	light	light	0	51	1	48	65	30.7
2012	4dr Sedan 148-horsepower 2.0L H4 5-speed manual AWD	flat	med	hvy	5	15	30	50	70	31.3
2012	4dr Hatch turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	med	light	3	7	30	60	70	25.1
2012	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	flat	med	light	15	11	30	43	69	28.7
2012	4dr Hatch 148-horsepower 2.0L H4 5-speed manual AWD	hills	med	light	0	7	31	62	68	32.8
2011	4dr Sedan turbocharged 305hp 2.5L H4 6-speed manual AWD	flat	med	light	20	60	10	10	60	19.4
2011	4dr Sedan turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	med	hvy	5	10	20	65	75	26.0
2011	4dr Hatch turbocharged 394hp 2.5L H4 6-speed manual AWD	flat	med	none	0	0	0	100	110	24.2
2011	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	hills	med	light	15	8	15	63	65	21.5
2011	4dr Hatch turbocharged 265hp 2.5L H4 5-speed manual AWD	hills	lead	hvy	1	21	55	23	68	19.6
2011	4dr Hatch 170-horsepower 2.5L H4 5-speed manual AWD	flat	v.lt	none	9	9	2	80	100	29.4
2011	4dr Hatch 170-horsepower 2.5L H4 4-speed automatic AWD	flat	med	none	0	50	25	25	75	24.3
2010	4dr Sedan turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	med	none	14	15	3	68	65	23.8
2010	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	hills	med	none	11	12	17	60	90	17.9
2010	4dr Hatch turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	med	none	13	22	30	34	81	21.7
2010	4dr Hatch 170-horsepower 2.5L H4 5-speed manual AWD	hills	med	light	5	3	25	68	65	25.4
2010	4dr Hatch 170-horsepower 2.5L H4 4-speed automatic AWD	flat	light	light	0	28	5	68	63	26.1
2009	4dr Sedan turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	lead	none	1	39	3	57	71	22.3
2009	4dr Sedan 170-horsepower 2.5L H4 5-speed manual AWD	flat	med	light	1	21	59	20	65	27.1
2009	4dr Sedan 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	flat	med	none	25	47	8	20	110	23.1
2009	4dr Sedan 170-horsepower 2.5L H4 4-speed automatic AWD	hills	light	light	3	18	35	45	60	25.3
2009	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	flat	med	none	25	62	10	3	120	18.8
2009	4dr Hatch turbocharged 265hp 2.5L H4 5-speed manual AWD	flat	lead	light	3	15	34	48	72	22.8
2009	4dr Hatch 170-horsepower 2.5L H4 5-speed manual AWD	flat	med	light	1	39	7	53	76	25.1
2009	4dr Hatch 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	flat	med	none	0	0	0	100	70	28.0
2009	4dr Hatch 170-horsepower 2.5L H4 4-speed automatic AWD	flat	med	none	8	45	27	20	65	24.1
2008	4dr Sedan turbocharged 224hp 2.5L H4 5-speed manual AWD	flat	med	light	7	18	24	52	69	22.6
2008	4dr Sedan turbocharged 224hp 2.5L H4 4-speed shiftable automatic AWD	flat	med	light	21	21	21	37	90	22.4
2008	4dr Sedan 170-horsepower 2.5L H4 5-speed manual AWD	flat	med	none	6	29	48	18	80	22.0
2008	4dr Sedan 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	hills	med	none	25	20	35	20	65	24.9
2008	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	flat	med	light	13	25	23	39	70	18.9
2008	4dr Hatch turbocharged 224hp 2.5L H4 5-speed manual AWD	flat	med	light	7	19	27	46	73	23.0
2008	4dr Hatch 170-horsepower 2.5L H4 5-speed manual AWD	flat	med	light	7	52	10	31	67	25.0
2008	4dr Hatch 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	flat	light	light	12	5	22	61	68	26.9
2008	4dr Hatch 170-horsepower 2.5L H4 4-speed automatic AWD	hills	med	hvy	47	9	9	36	85	21.7
2007	4dr Wagon turbocharged 224hp 2.5L H4 5-speed manual AWD	flat	med	light	5	5	80	10	75	22.0
2007	4dr Wagon 173-horsepower 2.5L H4 5-speed manual AWD	flat	med	light	10	10	50	30	75	30.6
2007	4dr Wagon 173-horsepower 2.5L H4 4-speed automatic AWD	flat	lead	none	6	17	67	11	85	19.3
2007	4dr Sedan turbocharged 293hp 2.5L H4 6-speed manual AWD	flat	med	light	12	16	7	66	69	23.2
2007	4dr Sedan turbocharged 224hp 2.5L H4 5-speed manual AWD	flat	med	none	0	10	50	40	65	22.0
2007	4dr Sedan 173-horsepower 2.5L H4 5-speed manual AWD	flat	lead	none	10	8	40	43	90	20.5
2007	4dr Sedan 173-horsepower 2.5L H4 4-speed automatic AWD	flat	med	light	6	18	26	51	99	23.9
2006	4dr Wagon turbocharged 230hp 2.5L H4 5-speed manual AWD	hills	med	light	7	28	33	32	70	22.8
2006	4dr Wagon 173-horsepower 2.5L H4 5-speed manual AWD	hills	med	light	9	10	10	71	72	26.9
2006	4dr Sedan turbocharged 300hp 2.5L H4 6-speed manual AWD	flat	med	light	12	18	33	37	108	17.8
2006	4dr Sedan turbocharged 230hp 2.5L H4 5-speed manual AWD	flat	lead	light	9	21	29	41	71	23.3
2006	4dr Sedan turbocharged 230hp 2.5L H4 4-speed automatic AWD	flat	med	light	14	14	21	51	72	22.0
2006	4dr Sedan 173-horsepower 2.5L H4 5-speed manual AWD	flat	light	light	5	13	6	75	65	28.5
2006	4dr Sedan 173-horsepower 2.5L H4 4-speed automatic AWD	flat	light	light	15	10	5	70	120	26.0
2005	4dr Wagon turbocharged 227hp 2.0L H4 5-speed manual AWD	hills	med	light	5	5	5	85	85	23.0
2005	4dr Wagon turbocharged 227hp 2.0L H4 4-speed automatic AWD	flat	med	light	8	8	18	68	75	22.5
2005	4dr Wagon 165-horsepower 2.5L H4 5-speed manual AWD	flat	med	light	3	16	23	59	98	22.5
2005	4dr Sedan turbocharged 300hp 2.5L H4 6-speed manual AWD	flat	med	light	7	21	22	50	79	21.5
2005	4dr Sedan turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	none	0	0	0	100	75	26.3
2005	4dr Sedan turbocharged 227hp 2.0L H4 4-speed automatic AWD	flat	med	light	10	10	40	40	70	23.5
2005	4dr Sedan 165-horsepower 2.5L H4 5-speed manual AWD	flat	light	light	5	15	50	30	110	29.0
2005	4dr Sedan 165-horsepower 2.5L H4 4-speed automatic AWD	hills	v.lt	none	0	0	0	100	65	27.9
2004	4dr Wagon turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	light	11	8	31	49	74	24.2
2004	4dr Wagon 165-horsepower 2.5L H4 4-speed automatic AWD	flat	med	none	0	25	65	10	100	21.6
2004	4dr Sedan turbocharged 300hp 2.5L H4 6-speed manual AWD	flat	med	none	7	34	22	37	72	17.5
2004	4dr Sedan turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	light	9	23	26	42	80	21.3
2004	4dr Sedan turbocharged 227hp 2.0L H4 4-speed automatic AWD	flat	light	none	1	75	20	4	70	18.0
2004	4dr Sedan 165-horsepower 2.5L H4 5-speed manual AWD	hills	med	light	5	15	0	80	75	28.0
2003	4dr Wagon turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	none	12	42	15	31	68	18.7
2003	4dr Sedan turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	none	24	14	20	42	68	24.9
2003	4dr Sedan turbocharged 227hp 2.0L H4 4-speed automatic AWD	flat	med	none	23	23	25	29	70	23.0
2002	4dr Wagon turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	light	4	11	16	69	74	24.1
2002	4dr Wagon turbocharged 227hp 2.0L H4 4-speed automatic AWD	hills	light	none	1	41	2	58	70	20.1
2002	4dr Wagon 165-horsepower 2.5L H4 5-speed manual AWD	hills	med	light	8	15	17	60	60	25.1
2002	4dr Wagon 165-horsepower 2.5L H4 4-speed automatic AWD	flat	med	light	18	18	13	53	70	20.2
2002	4dr Sedan turbocharged 227hp 2.0L H4 5-speed manual AWD	flat	med	none	5	8	24	63	87	24.2
2002	4dr Sedan 165-horsepower 2.5L H4 5-speed manual AWD	flat	light	none	20	30	50	0	0	22.5
2002	4dr Sedan 165-horsepower 2.5L H4 4-speed automatic AWD	flat	med	light	0	50	10	40	70	26.0
2000	2dr Coupe 165-horsepower 2.5L H4 5-speed manual AWD	flat	med	none	5	5	20	70	75	24.5

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This page shows only averages. See all the Subaru Impreza / Outback Sport fuel economy data.

Cadillac CTS MPG

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 turbocharged 268hp 2.0L I4 8-speed shiftable automatic AWD	flat	med	light	0	0	60	40	70	22.1
2011	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	hvy	23	40	13	23	83	18.0
2010	4dr Wagon 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	hills	light	light	0	5	2	93	60	23.0
2010	4dr Wagon 270-horsepower 3.0L V6 6-speed shiftable automatic AWD	flat	v.lt	none	0	64	3	34	70	18.2
2010	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	none	0	0	0	100	70	25.5
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD	hills	lead	light	10	8	39	44	62	15.3
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed manual RWD	hills	lead	light	5	5	35	55	65	13.2
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2009	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	hills	med	hvy	11	16	21	53	71	22.6
2009	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	light	3	18	42	37	57	19.8
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	light	10	32	34	24	72	19.7
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	flat	med	none	4	23	42	31	70	19.7
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed manual RWD	hills	med	light	8	25	15	53	75	22.5
2008	4dr Sedan 263-horsepower 3.6L V6 6-speed shiftable automatic RWD	flat	light	none	1	6	19	74	70	23.4
2008	4dr Sedan 263-horsepower 3.6L V6 6-speed shiftable automatic AWD	hills	med	light	0	0	83	17	70	19.3
2007	4dr Sedan 255-horsepower 3.6L V6 5-speed shiftable automatic RWD	flat	light	light	4	9	9	78	71	20.3
2007	4dr Sedan 210-horsepower 2.8L V6 5-speed shiftable automatic RWD	mtns	lead	light	0	0	70	30	60	19.5
2006	4dr Sedan 400-horsepower 6.0L V8 6-speed manual RWD	flat	med	hvy	15	50	0	35	70	18.4
2006	4dr Sedan 255-horsepower 3.6L V6 6-speed manual RWD	flat	lead	light	25	10	5	60	85	21.0
2006	4dr Sedan 255-horsepower 3.6L V6 5-speed shiftable automatic RWD	flat	med	light	7	11	11	72	80	21.3
2006	4dr Sedan 210-horsepower 2.8L V6 6-speed manual RWD	flat	light	none	5	20	50	25	100	16.8
2006	4dr Sedan 210-horsepower 2.8L V6 5-speed shiftable automatic RWD	flat	med	light	7	20	50	23	67	19.2
2005	4dr Sedan 400-horsepower 5.7L V8 6-speed manual RWD	flat	med	light	7	13	24	57	69	20.7
2005	4dr Sedan 255-horsepower 3.6L V6 6-speed manual RWD	flat	med	none	2	15	35	48	60	20.2
2005	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	flat	med	light	8	12	33	47	69	23.9
2004	4dr Sedan 400-horsepower 5.7L V8 6-speed manual RWD	flat	med	light	0	0	30	70	67	21.2
2004	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	flat	med	none	7	25	24	45	66	21.9
2004	4dr Sedan 220-horsepower 3.2L V6 5-speed manual RWD	flat	med	light	10	10	0	80	70	25.6
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	flat	med	light	10	17	33	40	91	22.9

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

See TrueDelta's information for all Sedans and Hatchbacks.

See TrueDelta's information for all Subaru models and Cadillac models.

What Our Members Are Saying about the Real Gas Mileage of the Subaru Impreza / Outback Sport

Subaru Impreza / Outback Sport Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr Sedan 148-horsepower 2.0L H4 5-speed manual AWD	Wow, this is what I said after 2 days with the vehicle, winter driving, and its cold winter here. I averaged 7.6 l/100km, mixed city and highway driving, at -20 celsius, through snow most time of these 2 days. Very impressive for awd vehicle! see full Subaru Impreza / Outback Sport review
2013	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	It takes a while for the engine & drivetrain to break in, but when they do you will start to see some very impressive numbers on the ODO. I'm at ~2600 miles right now and averaging 29-30 mpg between 50% open freeway cruising, 25% freeway traffic, 25% city driving. see full Subaru Impreza / Outback Sport review
2012	4dr Sedan 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	Oustanding fuel economy for a all wheel drive...the highest mpg all wheel drive of any manufacturer. see full Subaru Impreza / Outback Sport review
2012	4dr Sedan 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	Got 36 MPG right out of the dealer. Have gotten up to 39 MPG with cruise see full Subaru Impreza / Outback Sport review
2012	4dr Hatch 148-horsepower 2.0L H4 6-speed shiftable CVT AWD	Good reported gas mileage. see full Subaru Impreza / Outback Sport review
2008	4dr Hatch 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	much better than expected, considering all wheel drive, and a bit of a heavy foot see full Subaru Impreza / Outback Sport review
2004	4dr Wagon turbocharged 227hp 2.0L H4 5-speed manual AWD	I have gotten 28mpg on the highway, which makes it perfect for road trips. see full Subaru Impreza / Outback Sport review
2004	4dr Wagon 165-horsepower 2.5L H4 4-speed automatic AWD	I get 23-26mpg around town, 28-30 highway, which I consider very very good for an AWD car. I get same fuel economy as many non AWD cars. see full Subaru Impreza / Outback Sport review
2004	4dr Sedan 165-horsepower 2.5L H4 5-speed manual AWD	28+ MPG, nothing to complain about. see full Subaru Impreza / Outback Sport review
2002	4dr Sedan turbocharged 227hp 2.0L H4 5-speed manual AWD	Average about 25mpg in evenly mixed driving. see full Subaru Impreza / Outback Sport review

Subaru Impreza / Outback Sport Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2012	4dr Hatch 148-horsepower 2.0L H4 CVT AWD	The fuel economy isn't as high expected. I get about 28 mpg. I should probably stop driving like I stole it when the kids are out of the car. see full Subaru Impreza / Outback Sport review
2010	4dr Sedan turbocharged 265hp 2.5L H4 5-speed manual AWD	Not really dislike, I didnt expect civic like mpg. Around town mileage suffers, but on the highways the car cruises quite easily. You can expect ~25mpg on average combined (with no led food). Impressive for the hp and AWD. see full Subaru Impreza / Outback Sport review
2010	4dr Hatch 170-horsepower 2.5L H4 5-speed manual AWD	Really crappy, especially for a 2.5L 4 cylinder engine. 22 MPG average. 18 city, 27 highway is what I got. see full Subaru Impreza / Outback Sport review
2009	4dr Hatch 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	low fuel economy because of AWD components see full Subaru Impreza / Outback Sport review
2008	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	The WRX did not get the kind of mileage our family was looking for in a new vehicle. see full Subaru Impreza / Outback Sport review
2008	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	The fuel economy was not within our target range for a new car. see full Subaru Impreza / Outback Sport review
2008	4dr Hatch turbocharged 305hp 2.5L H4 6-speed manual AWD	It drinks gas like a collage student on a drinking binge see full Subaru Impreza / Outback Sport review
2008	4dr Sedan 170-horsepower 2.5L H4 4-speed automatic AWD	Pathetic for a compact sedan at <28 mpg highway. The AWD system must be a huge fuel sink. see full Subaru Impreza / Outback Sport review
2008	4dr Hatch 170-horsepower 2.5L H4 4-speed shiftable automatic AWD	For such a small car with NA 170hp engine the economy is rather poor ~24mpg. see full Subaru Impreza / Outback Sport review
2007	4dr Wagon turbocharged 224hp 2.5L H4 5-speed manual AWD	For a car of that size, the fuel economy is dismal. I get about 19 in the city, which is where most of my driving is done. That is marginally better than any SUV. see full Subaru Impreza / Outback Sport review

TrueDelta Reviews the Real Gas Mileage of the Cadillac CTS

Cadillac CTS Real Gas Mileage: Cons
Year	Comment
	With the 2011 528i, BMW pioneered the use of a turbocharged four-cylinder engine in a $60,000 midsize sedan on this side of the Atlantic. The point: fuel economy, specifically EPA ratings of 22 mpg city and 33 mpg highway even with all-wheel-drive (24/34 with RWD). Audi followed with an A6 2.0T good for 20/29 (25/33 with FWD) a year later. The new CTS takes the path blazed by the Germans, but much less effectively. Though the Cadillac weighs significantly less than the Audi or the BMW, its EPA ratings are lower, 19/28 (20/30 with RWD). The same is the case with the two 3.6-liter V6 engine options, even though unlike the turbo four they can be paired with an eight-speed (instead of a six-speed) automatic. The rear-drive-only Vsport barely evades the gas guzzler tax with ratings of 16/24. Even the 445-horsepower turbocharged 4.4-liter V8 in the BMW 550i does a bit better. In my real-world driving, the CTS's trip computer confirmed this shortcoming. Even considering that the outside temperature was near zero, post-warm-up averages that clustered around 18 were disappointing. Only by driving the car with a light foot could I nudge the suburban average over 20, and even then not much over. A 320-horsepower 3.0-liter 640i Grand Coupe tested a week earlier in similar conditions did at least one mpg better than the 272-horsepower, 2.0-liter Cadillac. And when I tested a 528i xDrive in slightly warmer temps it often managed 25 mpg (in an EcoPro Mode the Cadillac lacks). In one trip this BMW even touched 30. see full Cadillac CTS review

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

Cadillac CTS Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	fill for $50 on reg. today that is cheap see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	23 cty & 26 hwy need i say more see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic RWD	Averaging 25.5 on the highway. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	The fuel economy is better than expected, when driven in mixed city/highway driving. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	I get 25 miles per gallon - mostly highway driving - which is reasonable for a car of this size and performance. see full Cadillac CTS review
2003	4dr Sedan 220-horsepower 3.2L V6 5-speed automatic RWD	about 26 mpg is great....im use to driving a suv where im luckey to get 16mpg highway see full Cadillac CTS review

Cadillac CTS Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2009	4dr Sedan supercharged 556hp 6.2L V8 6-speed shiftable automatic RWD	14mpg is not great. However, the performance makes more than up for it. see full Cadillac CTS review
2008	4dr Sedan 304-horsepower 3.6L V6 6-speed shiftable automatic AWD	City mileage acceptable; Highway mileage could be better. see full Cadillac CTS review
2005	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	I get 20-21mpg on my commute which is about 70%hwy, and normally 25-27 with pure freeway driving, it just seems with technology today they could kick that up to 23-24 and 28-30 respectively. see full Cadillac CTS review
2004	4dr Sedan 255-horsepower 3.6L V6 5-speed automatic RWD	Average at best. Yea it is a heavy car with all the safety eqipment. see full Cadillac CTS review