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2026 Cadillac CT4 Specs: MPG, Gas Mileage, Engine Size & Dimensions

2020–2026 model years52 variantsUp to 27 MPG combined
Real-World MPG QuestionsBed Dimensions & Cargo SpaceService Intervals

2026 Cadillac CT4 Specs at a Glance

The 2026 Cadillac CT4 gets 26 mpg combined on the 2.0L Rear-Wheel Drive configuration, weighs 3,860 lbs, measures 187.4 in long. Figures are per configuration, not a single official number — other trims rate as low as 18 mpg combined. Every figure below comes from EPA, NHTSA, or manufacturer published data — no estimates.

Combined MPG
26 mpg (22 city / 32 hwy)
Best configuration: 2.0L · Rear-Wheel Drive · Automatic (S8) · other 2026 trims rate 18–26 mpg combined
Engine
2.0L 4-cyl
2.0L · Rear-Wheel Drive · Automatic (S8) · 3 powertrains offered
Curb weight
3,860 lbs
Heaviest recorded configuration: CT4-V BLACKWING 4DR SEDAN RWD
Length
187.4 in · 71.7 in wide · 55.9 in tall
Wheelbase
109.4 in

2026 Cadillac CT4 trims and MPG

TrimEngineTransDriveCityHwyCombined
Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125
Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823
Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924
Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923
Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419
Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive213125
Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive223226
Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318

Detailed Specifications

MPG & Fuel Economy

MPG for every year and trim

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Engine Specifications

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Annual Fuel Cost

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Transmission Specifications

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Drivetrain & Drive Type

Drivetrain for every year and trim

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Vehicle Class & EPA Size Category

Vehicle Class for every year and trim

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Maintenance Schedule & Service Intervals

Maintenance for every year and trim

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Dimensions & Size

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Curb Weight

Curb Weight for every year and trim

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Cadillac CT4 — All Years Overview

YearTrimEngineTransDriveCityHwyCombinedFuel
2026Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2026Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2026Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2026Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2026Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419Premium Gasoline
2026Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive213125Premium Gasoline
2026Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive223226Premium Gasoline
2026Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318Premium Gasoline
2025Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2025Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2025Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2025Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2025Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419Premium Gasoline
2025Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive223226Premium Gasoline
2025Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive213125Premium Gasoline
2025Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318Premium Gasoline
2024Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2024Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2024Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2024Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2024Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419Premium Gasoline
2024Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive223226Premium Gasoline
2024Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive213125Premium Gasoline
2024Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318Premium Gasoline
2023Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2023Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2023Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2023Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2023Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419Premium Gasoline
2023Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive233427Premium Gasoline
2023Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive223126Premium Gasoline
2023Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318Premium Gasoline
2022Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2022Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2022Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2022Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2022Auto (S10), 6 cyl, 3.6 L6 · 3.6LAutomatic (S10)Rear-Wheel Drive162419Premium Gasoline
2022Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive233427Premium Gasoline
2022Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive223126Premium Gasoline
2022Man 6-spd, 6 cyl, 3.6 L6 · 3.6LManual 6-spdRear-Wheel Drive152318Premium Gasoline
2021Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2021Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2021Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive212924Premium Gasoline
2021Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive213125Premium Gasoline
2021Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive233226Premium Gasoline
2021Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive233427Premium Gasoline
2020Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive203024Premium Gasoline
2020Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)All-Wheel Drive202823Premium Gasoline
2020Auto (S10), 4 cyl, 2.7 L4 · 2.7LAutomatic (S10)Rear-Wheel Drive202923Premium Gasoline
2020Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)Rear-Wheel Drive233427Premium Gasoline
2020Auto (S8), 4 cyl, 2.0 L4 · 2.0LAutomatic (S8)All-Wheel Drive233226Premium Gasoline

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Cadillac CT4 — Frequently Asked Questions

What is the fuel economy of the 2026 Cadillac CT4?

The Cadillac CT4 is EPA-rated at up to 27 MPG combined (23 city / 34 highway), a historical peak recorded on the 2023 model year.

What engine does the 2026 Cadillac CT4 have?

The Cadillac CT4 uses a 2.7L 4-cylinder engine paired with an Automatic transmission.

What years of the Cadillac CT4 are covered here?

This page documents 51 verified Cadillac CT4 configurations across model years 2020–2026.

Which model year of the Cadillac CT4 is the most fuel efficient?

The 2023 Cadillac CT4 holds the highest combined rating at 27 MPG; the 2024 sits lowest at 26 MPG, a difference of 1 MPG (about 4%) across the 7 rated years on file.

How many engine options does the Cadillac CT4 have?

The records list 3 distinct displacements for the Cadillac CT4 — 2L, 2.7L, 3.6L — which is why combined MPG varies between trims of the same year.

Is the 2026 Cadillac CT4 front-wheel drive or all-wheel drive?

The Cadillac CT4 appears in 2 drivetrain layouts across the years documented here — Rear-Wheel Drive, All-Wheel Drive — with the latest 2026 record on Rear-Wheel Drive.

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