2020 Buick Regal
US · Midsize Cars
The 2020 Buick Regal is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI)
- Transmission
- Automatic
- Drivetrain
- Varies by configuration: FWD, AWD
- Fuel
- Gasoline
- Economy
- 22 mpg (10.7 L/100 km) to 26 mpg (9.0 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI) | |
| Displacement | 2.0 L to 3.6 L | |
| Cylinders | 4 to 6 | |
| Aspiration | Turbocharged | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 8 to 9 | |
| Drivetrain | Varies by configuration: FWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 22 mpg (10.7 L/100 km) to 26 mpg (9.0 L/100 km) | EPA fueleconomy.gov |
| City | 19 mpg (12.4 L/100 km) to 22 mpg (10.7 L/100 km) | |
| Highway | 27 mpg (8.7 L/100 km) to 32 mpg (7.4 L/100 km) |
Our sources do not publish these for this vehicle: Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
4 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 2 recall campaigns for this model year. Last checked November 8, 2026.
22V465000: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
General Motors, LLC (GM) is recalling certain 2018-2020 Buick Regal vehicles. In the event of a vacuum-power brake assist failure, a software error in the electronic brake control module (EBCM) may result in a loss of power brake assist. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard No. 135, "Light vehicle brake systems."
Remedy: Dealers will update the EBCM software, free of charge. Interim owner notification letters advising owners of the safety risk were mailed on August 19, 2022. Owner notification letters were mailed September 16, 2022. Owners may contact…
Reported June 30, 2022. View on NHTSA
19V762000: SEATS
General Motors LLC (GM) is recalling certain 2019-2020 Buick Regal vehicles. The driver or passenger front seat frames may have a lower crossbar that was improperly welded.
Remedy: GM will notify owners, and dealers will inspect the crossbar welds on the front seats. If the crossbar is improperly welded, the seat back frame will be replaced, free of charge. Interim notices informing owners of the safety risk were…
Reported October 24, 2019. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved November 4, 2026 · US Government public data
- NHTSA vPIC · retrieved October 12, 2026 · US Government public data
Source checked: November 4, 2026
Data verified: November 4, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2019 Buick Regal
Gasoline
Varies by configuration: 3.6L 6-cylinder (SIDI), 2.0L 4-cylinder turbocharged (SIDI) · Varies by configuration: AWD, FWD
26 mpg (9.0 L/100 km) to 22 mpg (10.7 L/100 km)
Frequently asked questions
What engine does the 2020 Buick Regal have?
Varies by configuration: 2.0L 4-cylinder turbocharged (SIDI), 3.6L 6-cylinder (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2020 Buick Regal?
Combined fuel economy is 22 mpg (10.7 L/100 km) to 26 mpg (9.0 L/100 km), as published by the source shown in the specification table.
Is the 2020 Buick Regal front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: FWD, AWD.
Are there recalls for the 2020 Buick Regal?
NHTSA lists 2 recall campaigns for this model year (last checked November 8, 2026). Details are in the Recalls section.