2020 head-to-head · Midsize Car

2020 Buick Regal vs Kia Stinger

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,114/ year to fuel
22 MPG
✓ Cheaper to run
$2,370/ year to fuel
25 MPG

The 2020 Buick Regal is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, it costs about $2,114 a year to fuel (22 MPG), versus $2,370 for the 2020 Kia Stinger (25 MPG). That's roughly $256 a year, or about $1,282 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Buick Regal
  • Kia Stinger

Side by side

Buick RegalKia Stinger
$2,114 Your annual fuel cost $2,370
22 MPG Combined efficiency 25 MPG
19 MPG City 22 MPG
27 MPG Highway 29 MPG
98 cu ft Passenger volume 95 cu ft
18 cu ft Cargo volume 23 cu ft
411 g/mi Tailpipe CO₂ (g/mi) 365 g/mi
4/10 EPA fuel economy score 5/10
4/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Regular gasoline Fuel Premium gasoline
3.6L 6-cyl Engine / motor 2.0L 4-cyl turbo
9-speed automatic Transmission 8-speed automatic
AWD Drivetrain RWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Buick Regal vs Kia Stinger across model years

  • Buick Regal
  • Kia Stinger

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Buick Regal has more passenger space (98 vs. 95 cu ft); the Kia Stinger has more cargo space (23 vs. 18 cu ft).

Among 64 2020 midsize cars, the Buick Regal ranks 40th and the Kia Stinger 51st for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2020 Buick Regal or the 2020 Kia Stinger?

Measured by cost to drive, the Buick Regal. The Buick Regal is rated 22 MPG combined and the Kia Stinger 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 Buick Regal vs. the Kia Stinger per year?

At 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, about $2,114 for the Buick Regal and $2,370 for the Kia Stinger.

Which has more cargo space?

The Kia Stinger, with 23 cu ft of luggage volume versus 18 cu ft (EPA interior volume index).

Buick Regal vs Kia Stinger in other years

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