Cadillac

Cadillac CT5

Photo: Kevauto / Wikimedia Commons · CC BY-SA 4.0

The official data lists 63 versions of the Cadillac CT5 (2020–2026), in the United States and Canada. Each market publishes its own figures, measured on its own test procedure.

At a glance

Years in the data: 2020–2026
Markets: United States, Canada
Engines: 2.0 L to 6.2 L
Fuels: Petrol
Lowest consumption (United States): 8.7 L/100 km (EPA)
Lowest consumption (Canada): 8.8 L/100 km (5-cycle)

What kind of car is the Cadillac CT5?

The CT5 is a mid-size luxury sedan with four doors and petrol powertrains. Its first generation arrived in 2020, carrying Cadillac’s sedan line into a range that also includes crossovers.

The first-generation CT5 uses the Alpha 2 platform, also identified by the codes A2SL. The model’s design and rear-wheel-drive layout reflect Cadillac’s continuing place in the luxury sedan market; all-wheel drive is also available in some versions.

CT5 engines and power

The US and Canadian lineups span 2.0 L to 6.2 L petrol engines. That range includes four-cylinder options and larger performance-oriented engines.

How economical is the Cadillac CT5?

The lowest listed US consumption is 8.7 L/100 km, and the best combined EPA rating is 27 MPG. Canada’s lowest listed figure is 8.8 L/100 km under the NRCan 5-cycle test. The EPA and Canadian 5-cycle procedures differ, so the results are best considered within their respective markets.

The CT5 appears in US and Canadian market figures from 2020 to 2026.

Questions and answers

What type of car is the Cadillac CT5?

It is a mid-size luxury sedan. Its first generation began in 2020.

What engines are available in the CT5?

The US and Canadian lineups cover petrol engines from 2.0 L to 6.2 L.

How economical is the CT5?

The lowest listed US figure is 8.7 L/100 km, with a 27 MPG combined EPA rating. Canada’s lowest listed figure is 8.8 L/100 km on the NRCan 5-cycle test.

CT5 first generation (since 2020)

Cadillac CT5 first generation — Photo: Kevauto / Wikimedia Commons · CC BY-SA 4.0

Model codes: Alpha 2, A2SL · References: en.wikipedia.org, gmauthority.com

United States 27 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and version	Engine	Fuel	Gearbox	Drive	Consumption (combined)	CO₂
2026SIDI	2.0 L	Petrol	10-speed automatic	Rear-wheel drive	26 MPG (9.0 L/100 km) EPA	215 g/km
2026SIDI	2.0 L	Petrol	10-speed automatic	All-wheel drive	24 MPG (9.8 L/100 km) EPA	230 g/km
2021–2026SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	21 MPG (11.2 L/100 km) EPA	263 g/km
2025–2026SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	22 MPG (10.7 L/100 km) EPA	248 g/km
2025–2026SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	20 MPG (11.8 L/100 km) EPA	277 g/km
2026SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	260 g/km
2025–2026SIDI	6.2 L	Petrol	10-speed automatic	Rear-wheel drive	15 MPG (15.7 L/100 km) EPA	360 g/km
2025–2026SIDI	6.2 L	Petrol	6-speed manual	Rear-wheel drive	15 MPG (15.7 L/100 km) EPA	365 g/km
2025SIDI	2.0 L	Petrol	10-speed automatic	Rear-wheel drive	26 MPG (9.0 L/100 km) EPA	212 g/km
2025SIDI	2.0 L	Petrol	10-speed automatic	All-wheel drive	25 MPG (9.4 L/100 km) EPA	224 g/km
2025SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	262 g/km
2022–2024SIDI	2.0 L	Petrol	10-speed automatic	Rear-wheel drive	27 MPG (8.7 L/100 km) EPA	207 g/km
2022–2024SIDI	2.0 L	Petrol	10-speed automatic	All-wheel drive	25 MPG (9.4 L/100 km) EPA	222 g/km
2021–2024SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	260 g/km
2022–2024SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	22 MPG (10.7 L/100 km) EPA	252 g/km
2023–2024SIDI	6.2 L	Petrol	6-speed manual	Rear-wheel drive	15 MPG (15.7 L/100 km) EPA	368 g/km
2023–2024SIDI	6.2 L	Petrol	10-speed automatic	Rear-wheel drive	16 MPG (14.7 L/100 km) EPA	347 g/km
2022SIDI	6.2 L	Petrol	6-speed manual	Rear-wheel drive	15 MPG (15.7 L/100 km) EPA	356 g/km
2022SIDI	6.2 L	Petrol	10-speed automatic	Rear-wheel drive	16 MPG (14.7 L/100 km) EPA	346 g/km
2020–2021SIDI	2.0 L	Petrol	10-speed automatic	Rear-wheel drive	26 MPG (9.0 L/100 km) EPA	209 g/km
2021SIDI	2.0 L	Petrol	10-speed automatic	All-wheel drive	25 MPG (9.4 L/100 km) EPA	242 g/km
2021SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	22 MPG (10.7 L/100 km) EPA	251 g/km
2020SIDI	2.0 L	Petrol	10-speed automatic	All-wheel drive	25 MPG (9.4 L/100 km) EPA	221 g/km
2020SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	268 g/km
2020SIDI	3.0 L	Petrol	10-speed automatic	All-wheel drive	20 MPG (11.8 L/100 km) EPA	275 g/km
2020SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	21 MPG (11.2 L/100 km) EPA	256 g/km
2020SIDI	3.0 L	Petrol	10-speed automatic	Rear-wheel drive	21 MPG (11.2 L/100 km) EPA	256 g/km

Canada 36 versions

Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2026Mid-size	2.0 L	Petrol	10-speed automatic	9.2 L/100 km 5-cycle	215 g/km
2026Mid-size	2.0 L	Petrol	10-speed automatic	9.7 L/100 km 5-cycle	228 g/km
2025–2026Mid-size	3.0 L	Petrol	10-speed automatic	10.6 L/100 km 5-cycle	249 g/km
2025–2026Mid-size	3.0 L	Petrol	10-speed automatic	11.7 L/100 km 5-cycle	275 g/km
2026Mid-size	3.0 L	Petrol	10-speed automatic	11.0 L/100 km 5-cycle	260 g/km
2026Mid-size	3.0 L	Petrol	10-speed automatic	11.2 L/100 km 5-cycle	263 g/km
2025–2026Mid-size	6.2 L	Petrol	10-speed automatic	15.3 L/100 km 5-cycle	360 g/km
2025–2026Mid-size	6.2 L	Petrol	6-speed manual	15.5 L/100 km 5-cycle	365 g/km
2025Mid-size	2.0 L	Petrol	10-speed automatic	9.0 L/100 km 5-cycle	212 g/km
2025Mid-size	2.0 L	Petrol	10-speed automatic	9.6 L/100 km 5-cycle	224 g/km
2025Mid-size	3.0 L	Petrol	10-speed automatic	11.2 L/100 km 5-cycle	264 g/km
2025Mid-size	3.0 L	Petrol	10-speed automatic	11.1 L/100 km 5-cycle	261 g/km
2022–2024Mid-size	2.0 L	Petrol	10-speed automatic	8.8 L/100 km 5-cycle	207 g/km
2024Mid-size	2.0 L	Petrol	10-speed automatic	9.5 L/100 km 5-cycle	224 g/km
2023–2024Mid-size	3.0 L	Petrol	10-speed automatic	11.3 L/100 km 5-cycle	265 g/km
2023–2024Mid-size	3.0 L	Petrol	10-speed automatic	11.2 L/100 km 5-cycle	263 g/km
2024Mid-size	3.0 L	Petrol	10-speed automatic	10.8 L/100 km 5-cycle	252 g/km
2023–2024Mid-size	6.2 L	Petrol	10-speed automatic	14.8 L/100 km 5-cycle	347 g/km
2024Mid-size	6.2 L	Petrol	6-speed manual	15.3 L/100 km 5-cycle	358 g/km
2022–2023Mid-size	2.0 L	Petrol	10-speed automatic	9.5 L/100 km 5-cycle	222 g/km
2022–2023Mid-size	3.0 L	Petrol	10-speed automatic	10.7 L/100 km 5-cycle	252 g/km
2023Mid-size	6.2 L	Petrol	6-speed manual	15.2 L/100 km 5-cycle	368 g/km
2022Mid-size	3.0 L	Petrol	10-speed automatic	11.1 L/100 km 5-cycle	260 g/km
2022Mid-size	3.0 L	Petrol	10-speed automatic	11.0 L/100 km 5-cycle	258 g/km
2022Mid-size	6.2 L	Petrol	10-speed automatic	14.8 L/100 km 5-cycle	346 g/km
2022Mid-size	6.2 L	Petrol	6-speed manual	15.2 L/100 km 5-cycle	356 g/km
2020–2021Mid-size	2.0 L	Petrol	10-speed automatic	9.0 L/100 km 5-cycle	209 g/km
2021Mid-size	2.0 L	Petrol	10-speed automatic	9.5 L/100 km 5-cycle	242 g/km
2021Mid-size	3.0 L	Petrol	10-speed automatic	10.6 L/100 km 5-cycle	249 g/km
2021Mid-size	3.0 L	Petrol	10-speed automatic	11.1 L/100 km 5-cycle	260 g/km
2021Mid-size	3.0 L	Petrol	10-speed automatic	10.9 L/100 km 5-cycle	256 g/km
2020Mid-size	2.0 L	Petrol	10-speed automatic	9.5 L/100 km 5-cycle	221 g/km
2020Mid-size	3.0 L	Petrol	10-speed automatic	11.0 L/100 km 5-cycle	256 g/km
2020Mid-size	3.0 L	Petrol	10-speed automatic	11.5 L/100 km 5-cycle	268 g/km
2020Mid-size	3.0 L	Petrol	10-speed automatic	11.3 L/100 km 5-cycle	263 g/km
2020Mid-size	3.0 L	Petrol	10-speed automatic	11.8 L/100 km 5-cycle	276 g/km

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.