2020 Buick Regal Specs: MPG, Gas Mileage, Engine Size & Dimensions
2020 Buick Regal Specs at a Glance
The 2020 Buick Regal gets 26 mpg combined on the 2.0L Front-Wheel Drive configuration, weighs 4,295 lbs, measures 196.5 in long. Figures are per configuration, not a single official number — other trims rate as low as 22 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 · Front-Wheel Drive · Automatic (S9) · other 2020 trims rate 22–26 mpg combined
- Engine
- 2.0L 4-cyl
- 2.0L · Front-Wheel Drive · Automatic (S9) · 2 powertrains offered
- Curb weight
- 4,295 lbs
- Heaviest recorded configuration: REGAL TOUR X WAGON
- Length
- 196.5 in · 73.2 in wide · 58.3 in tall
- Wheelbase
- 111.4 in
- NHTSA overall
- 5-star (2017)
2020 Buick Regal trims and MPG
| Trim | Engine | Trans | Drive | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 |
| Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 |
| Auto (S9), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S9) | Front-Wheel Drive | 22 | 32 | 26 |
| Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 19 | 27 | 22 |
Detailed Specifications
MPG & Fuel Economy
MPG for every year and trim
View details →Engine Specifications
Engine Specs for every year and trim
View details →Annual Fuel Cost
Fuel Cost for every year and trim
View details →Transmission Specifications
Transmission for every year and trim
View details →Drivetrain & Drive Type
Drivetrain for every year and trim
View details →Vehicle Class & EPA Size Category
Vehicle Class for every year and trim
View details →Maintenance Schedule & Service Intervals
Maintenance for every year and trim
View details →Dimensions & Size
Dimensions for every year and trim
View details →Curb Weight
Curb Weight for every year and trim
View details →NHTSA Safety Ratings
Safety for every year and trim
View details →Buick Regal Generations
Grouped by year ranges where the engine lineup, drivetrain options, and EPA class stay consistent — a derived approximation of the factory generations, not a manufacturer-published list.
| Years | Variants | Engines | Drive | Class | Best MPG |
|---|---|---|---|---|---|
| 2018–2020 | 12 | 2.0L, 3.6L | All-Wheel Drive, Front-Wheel Drive | Large Cars, Midsize Cars, Small Station Wagons | 26 |
| 2015–2017 | 13 | 2.0L, 2.4L | All-Wheel Drive, Front-Wheel Drive | Midsize Cars | 28 |
Buick Regal — All Years Overview
| Year | Trim | Engine | Trans | Drive | City | Hwy | Combined | Fuel |
|---|---|---|---|---|---|---|---|---|
| 2020 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2020 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2020 | Auto (S9), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S9) | Front-Wheel Drive | 22 | 32 | 26 | Premium Gasoline |
| 2020 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 19 | 27 | 22 | Regular Gasoline |
| 2019 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2019 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2019 | Auto (S9), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S9) | Front-Wheel Drive | 22 | 32 | 26 | Premium Gasoline |
| 2019 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 19 | 27 | 22 | Regular Gasoline |
| 2018 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2018 | Auto (S8), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S8) | All-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2018 | Auto (S9), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S9) | Front-Wheel Drive | 22 | 32 | 26 | Premium Gasoline |
| 2018 | Auto (S9), 6 cyl, 3.6 L | 6 · 3.6L | Automatic (S9) | All-Wheel Drive | 19 | 27 | 22 | Regular Gasoline |
| 2017 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | Front-Wheel Drive | 21 | 29 | 24 | Premium Gasoline |
| 2017 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | All-Wheel Drive | 19 | 27 | 22 | Premium Gasoline |
| 2017 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 19 | 30 | 23 | Regular Gasoline |
| 2016 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | All-Wheel Drive | 19 | 27 | 22 | Regular Gasoline |
| 2016 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | Front-Wheel Drive | 21 | 29 | 24 | Regular Gasoline |
| 2016 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 19 | 30 | 23 | Regular Gasoline |
| 2016 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 24 | 35 | 28 | Regular Gasoline |
| 2016 | Man 6-spd, 4 cyl, 2.0 L | 4 · 2.0L | Manual 6-spd | Front-Wheel Drive | 20 | 30 | 24 | Regular Gasoline |
| 2015 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | All-Wheel Drive | 19 | 27 | 22 | Regular Gasoline |
| 2015 | Auto (S6), 4 cyl, 2.0 L | 4 · 2.0L | Automatic (S6) | Front-Wheel Drive | 21 | 29 | 24 | Regular Gasoline |
| 2015 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 19 | 30 | 23 | Regular Gasoline |
| 2015 | Auto (S6), 4 cyl, 2.4 L | 4 · 2.4L | Automatic (S6) | Front-Wheel Drive | 24 | 35 | 28 | Regular Gasoline |
| 2015 | Man 6-spd, 4 cyl, 2.0 L | 4 · 2.0L | Manual 6-spd | Front-Wheel Drive | 20 | 31 | 24 | Regular Gasoline |
Compare across every brand
All Buick Regal specifications
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View all Buick models →Buick Regal — Frequently Asked Questions
What is the fuel economy of the 2020 Buick Regal?
The Buick Regal is EPA-rated at up to 28 MPG combined (24 city / 35 highway), a historical peak recorded on the 2016 model year.
What engine does the 2020 Buick Regal have?
The Buick Regal uses a 2.0L 4-cylinder engine paired with an Automatic transmission.
What years of the Buick Regal are covered here?
This page documents 25 verified Buick Regal configurations across model years 2015–2020.
Which model year of the Buick Regal is the most fuel efficient?
The 2016 Buick Regal holds the highest combined rating at 28 MPG; the 2017 sits lowest at 24 MPG, a difference of 4 MPG (about 17%) across the 6 rated years on file.
How many engine options does the Buick Regal have?
The records list 3 distinct displacements for the Buick Regal — 2L, 2.4L, 3.6L — which is why combined MPG varies between trims of the same year.
Is the 2020 Buick Regal front-wheel drive or all-wheel drive?
The Buick Regal appears in 2 drivetrain layouts across the years documented here — All-Wheel Drive, Front-Wheel Drive — with the latest 2020 record on All-Wheel Drive.