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2020 Mercedes-Benz S-Class mpg

Combined mpg, S 450 RWD

22mpg

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12,000 miles a year. Gas $3.20. Power 17 cents per kWh. Plug-in trims: 50% electric miles.

10203040506070Median 26S-Class: 22 mpg
103 sedans (2020), one trim per model: the cheapest with a rating. Median 26 mpg.
2020 Mercedes-Benz S-Class mpg by trim
TrimEngineDriveCity mpgHwy mpgCombinedTank, galMiles per tankCost a year
S 560e RWD3.0L 6cylRWD21262318.5 to 21.1N/A$1,375
S 450 RWD3.0L 6cylRWD19282221.1464$1,745
S 450 4MATIC AWD3.0L 6cylAWD18282221.1464$1,745
S 560 RWD4.0L 8cylRWD17272121.1443$1,829
S 560 4MATIC AWD4.0L 8cylAWD17272121.1443$1,829
S 560 4MATIC AWD4.0L 8cylAWD17262021.1422$1,920
S 560 Cabriolet RWD4.0L 8cylRWD17262021.1422$1,920
S AMG 63 4MATIC Sedan AWD4.0LAWD17262021.1422$1,920
S AMG 63 4MATIC Coupe AWD4.0LAWD17272021.1422$1,920
Mercedes-AMG S-Class S 63 AMG AWD4.0L 8cylAWD17262021.1422$1,920
Maybach S 560 4MATIC Sedan AWD4.0LAWD16251921.1401$2,021
S AMG 63 4MATIC Cabriolet AWD4.0LAWD15241821.1380$2,133
Mercedes-AMG S-Class S 63 AMG Cabriolet 2D AWD4.0L 8cylAWD15241821.1380$2,133
Maybach S 650 Sedan RWD6.0LRWD13211621.1338$2,400
S AMG 65 Sedan RWD6.0LRWD13221621.1338$2,400
Mercedes-AMG S-Class S 65 AMG RWD6.0L 12cylRWD13221621.1338$2,400

Plug-in trims: 50% electric miles.

Fuel cost

S 450 RWD, 22 mpg combined.

Per year
$1,745
Per month
$145
Per mile
14.5 cents
Fill the tank
$67.52
  • Best mpg: S 560e RWD, 23 mpg. $1,375 a year.
  • Top trim: S AMG 65 Sedan RWD. $2,400 a year. $655 more than the S 450 RWD.

Plug-in hybrid trims

2020 Mercedes-Benz S-Class plug-in trims
TrimElectric range, miMPGekWh per 100 miGas mpgCost a year
S 560e RWD196453.023$1,375

Cost a year: 50% electric miles, the rest on gas.

Trip cost

S 450 RWD: 28 mpg highway
TripGallonsCost
100 miles3.6$11.43
300 miles10.7$34.29
500 miles17.9$57.14
1,000 miles35.7$114

Commute cost

Per month
$126
Per year
$1,513
Miles a month
867

S 450 RWD. 20 miles each way, 5 days a week.

Is 22 mpg good? No. Beats 34% of 2026 cars.

MPG by year

16182022242009201220152018202120242026
S-Class: combined mpg of the cheapest rated trim, 2009 to 2026.

S-Class by year: price, hp, mpg, size

Rivals

2020 Mercedes-Benz S-Class and rivals
CarCheapest trimCombined mpgCompare
2020 Mercedes-Benz S-ClassS 450 RWD22 mpg
2020 Cadillac CT6-VAWD17 mpgCompare
2020 Maserati QuattroporteS RWD19 mpg
2020 Porsche PanameraRWD22 mpgCompare
2020 BMW 7 Series740i RWD24 mpg
2020 BMW M5AWD17 mpgCompare
2020 Audi A8L 55 TFSI AWD21 mpg

What this cannot tell you

EPA ratings. Your own mpg will differ.

Gas prices change by state and by week.

How values are checked