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Most Fuel-Efficient Large Cars of 2026

The most efficient 2026 large car is the Hyundai Sonata (Hybrid Blue · 2.0 L · FWD) at 51 MPG combined, 29 MPG above the median large car (22 MPG) among the 13 large cars ranked. The Hyundai Sonata costs about $1,290 a year to fuel, $2,160 less than the median large car ($3,450).

The top 10 run from 51 MPG to 20 MPG. Each model is listed once, with its best qualifying configuration named in the row; models with the same displayed value share a rank.

Best combined

51MPG

Hyundai Sonata

Median model

22MPG

13 models

Top-10 median

23MPG

Models ranked

13

one row per model

Full ranking

All 13 models. Every column is sortable.

Most Fuel-Efficient Large Cars of 2026: top 13 of 13 models
1
Hyundai Sonata
Hybrid Blue · 2.0 L · FWD
Hybrid
514756$1,290+29
2
Acura Integra
1.5 L · FWD
Gas · Premium fuel
322937$2,510+10
3
Kia K5
w/Stop-Start · 2.5 L · FWD
Gas
302637$2,190+8
4
BMW 7 Series
740i Sedan · 3.0 L · RWD
Hybrid · Premium fuel
282531$2,910+6
5
Genesis G80
2.5 L · AWD
Gas · Premium fuel
232029$3,450+1
5
Mercedes-Benz S-Class
S500 4matic · 3.0 L · AWD
Hybrid · Premium fuel
232029$3,450+1
7
Audi A8
quattro · 3.0 L · AWD
Hybrid · Premium fuel
221927$3,7200
8
Porsche Panamera
2.9 L · RWD
Gas · Premium fuel
211825$3,770−1
8
Genesis G90
3.5 L · AWD
Gas · Premium fuel
211826$3,860−1
10
Dodge Charger
R/T · 3.0 L · AWD
Gas
201726$3,270−2
11
Audi S8
4.0 L · AWD
Hybrid · Premium fuel
181524$4,540−4
12
Rolls-Royce Ghost
6.7 L · AWD
Gas · Premium fuel
141219$5,600−8
12
Rolls-Royce Phantom
6.7 L · RWD
Gas · Premium fuel
141219$5,600−8

How this list is built

Every line below is read from the list definition that produced the table.

  • Classes: Large cars.
  • Powertrains: Gas, Hybrid, Diesel.
  • Ranked by EPA combined MPG, highest first.
  • One row per model (make and model): the configuration that ranks best in this list is shown, with its trim, engine and drive named in the row.
  • Ties are decided on the displayed value (whole MPG or miles, kWh per 100 miles to one decimal, cost rounded to $10): tied models share a rank, then are ordered by a tie-breaker and by name.
  • Special-purpose vehicles, such as heavy-duty variants, are excluded.
  • Electric vehicles are ranked separately (see the EV rankings): gas, hybrid and diesel MPG is never mixed with MPGe.
  • Annual cost assumes 15,000 miles a year at the EPA rating and the dated national fuel prices stamped below; it is rounded to $10 and all differences use the rounded values.
  • Model years MY2022 to MY2026; a year is listed only when at least 10 models qualify.

Data and period

  • EPA ratings: fueleconomy.gov file of Sep 29, 2026
  • Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal); residential electricity, U.S. average, Jul 2026 (18.3¢/kWh)
  • 15,000 miles a year, 55% city and 45% highway

Frequently asked questions

Which 2026 large car gets the best gas mileage?

The most efficient 2026 large car is the Hyundai Sonata (Hybrid Blue · 2.0 L · FWD) at 51 MPG combined, 29 MPG above the median large car (22 MPG) among the 13 large cars ranked. The Hyundai Sonata costs about $1,290 a year to fuel, $2,160 less than the median large car ($3,450).

How much does the Hyundai Sonata cost to fuel per year?

About $1,290 a year at 15,000 miles a year, using the prices stamped at the bottom of this page. The median large car in this list costs $3,450 a year.

How many large cars are ranked for 2026?

13 models qualify, one row each. The median is 22 MPG, and the top 10 run from 51 MPG to 20 MPG.

How are ties, trims and drivetrains handled?

Each model appears once, with the configuration that ranks best in this list; its trim, engine and drive are named in the row. Models with the same displayed value share a rank (1, 2, 2, 4) and are then ordered by a tie-breaker and by name. See the methodology.

Are electric cars and plug-in hybrids included?

Not in this list. MPG rankings cover gas, hybrid and diesel models only. Electric cars are ranked in EV range and EV efficiency, and plug-in hybrids in electric range.

What does combined MPG mean?

EPA's combined rating blends 55% city and 45% highway driving. It comes from standardized laboratory tests, so your results will differ with driving style, weather and load. See the methodology.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal); residential electricity, U.S. average, Jul 2026 (18.3¢/kWh) · 15,000 miles a year, 55% city and 45% highway