2021 · Compact Car · Gas

2021 Cadillac CT4 MPG & fuel economy

The 2021 Cadillac CT4 is a compact car offered in 6 EPA-rated configurations. The most efficient version returns 27 MPG combined (23 city / 34 highway) on premium gasoline. Across the lineup, combined ratings range from 23 to 27 MPG. Efficiency is unchanged from the 2020 model. Among 37 compact cars rated for 2021, it ranks 26th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,194 a year to fuel.

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Combined 27 MPG 23 MPG city · 34 MPG hwy

Driving range — not published for this model

Your fuel cost $2,194 15,000 mi/yr · $14.63 per 100 mi

Class rank, 2021 #26 of 37 Compact Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Premium gas $/gal

Fuel average

The 2021 Cadillac CT4's fuel average is 11.5 km/L (8.7 L/100 km), or 27 MPG combined: 9.8 km/L in the city and 14.5 km/L on the highway.

	MPG	km/L	L/100 km
City	23	9.8	10.2
Highway	34	14.5	6.9
Combined	27	11.5	8.7

How it ranks among 2021 Compact Cars

Full class ranking →

1Kandi K27114 MPGe $796
2Toyota Corolla Hybrid52 MPG $894
3Honda Insight52 MPG $894
4Lexus UX Hybrid42 MPG $1,107
5Mitsubishi Mirage39 MPG $1,192
···
26Cadillac CT427 MPG $2,194
···
37Toyota Mirai74 MPGe $7,297

2021 CT4Other compact carsClass median: $1,826/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

CT4 MPG across model years

Full history →

6 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
RWD · 2.0L 4-cyl turbo · 8-speed automatic CT4	Gas	23 MPG	34 MPG	27 MPG	—	$2,194
AWD · 2.0L 4-cyl turbo · 8-speed automatic CT4 AWD	Gas	23 MPG	32 MPG	26 MPG	—	$2,279
RWD · 2.7L 4-cyl turbo · 10-speed automatic CT4	Gas	21 MPG	31 MPG	25 MPG	—	$2,370
AWD · 2.7L 4-cyl turbo · 10-speed automatic CT4 AWD	Gas	21 MPG	29 MPG	24 MPG	—	$2,469
RWD · 2.7L 4-cyl turbo · 10-speed automatic CT4 V	Gas	20 MPG	29 MPG	23 MPG	—	$2,576
AWD · 2.7L 4-cyl turbo · 10-speed automatic CT4 V AWD	Gas	20 MPG	28 MPG	23 MPG	—	$2,576

Specs (most efficient configuration)

Fuel: Premium gasoline
Engine / motor: 2.0L 4-cyl turbo
Transmission: 8-speed automatic
Drivetrain: RWD
Passenger volume: 90 cu ft
Cargo volume: 13 cu ft
Tailpipe CO₂: 327 g/mi
EPA fuel economy score: 6/10
EPA greenhouse gas score: 6/10

2021 Cadillac CT4 vs. rivals

vs Acura ILX 28 MPG · $2,116/yr ILX saves $78/yr vs Jaguar XE 28 MPG · $2,116/yr XE saves $78/yr vs Volvo S60 27 MPG · $2,194/yr Same fuel cost vs Lexus IS 25 MPG · $2,370/yr CT4 saves $176/yr vs Audi A4 Hybrid 28 MPG · $2,116/yr A4 Hybrid saves $78/yr vs Mercedes-Benz CLA-Class 29 MPG · $2,043/yr CLA-Class saves $151/yr vs Mercedes-Benz CLS-Class Hybrid 26 MPG · $2,279/yr CT4 saves $84/yr vs BMW M Hybrid 26 MPG · $2,279/yr CT4 saves $84/yr vs Mercedes-Benz S-Class 20 MPG · $2,962/yr CT4 saves $768/yr

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Frequently asked questions

What is the gas mileage of the 2021 Cadillac CT4?

Up to 27 MPG combined (23 city / 34 highway); ratings range from 23 to 27 MPG depending on configuration.

What fuel does the 2021 Cadillac CT4 use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2021 Cadillac CT4?