Ranking

Most efficient EVs: SUV, 2023 model year

Every EV with a published EPA combined efficiency, lowest energy use first, in kilowatt-hours per 100 miles. Fewer kWh per 100 miles means a cheaper charge for the same distance.

Published specs, not John’s test results. His score shows where he has scored a car; it never changes the order.

Data: Efficiency: fueleconomy.gov (EPA) for 7. Values last checked October 24, 2026.

7 of 7 EVs have a published EPA efficiency figure

Average 40.3 kWh/100 mi

  1. 1
    2017 Tesla Model X
    Photo credit

    Photo: Vauxford, CC BY-SA 4.0

    Specs only · not reviewed yet · Discontinued (2016–2026)

    102 MPGe

    33.1 kWh/100 mi

    Compare the 2023 Tesla Model X
  2. 2
    2017 Tesla Model X
    Photo credit

    Photo: Vauxford, CC BY-SA 4.0

    Specs only · not reviewed yet · Discontinued (2016–2026)

    98 MPGe

    34.4 kWh/100 mi

    Compare the 2023 Tesla Model X Plaid
  3. 3
    2023 Mercedes-Benz EQS SUV
    Photo credit

    Photo: LouieRBLX, CC BY-SA 4.0

    Specs only · not reviewed yet · Model years 2023–2027

    85 MPGe

    39.1 kWh/100 mi

    Compare the 2023 Mercedes EQS SUV 450+
  4. 4
    2023 Mercedes-Benz EQS SUV
    Photo credit

    Photo: LouieRBLX, CC BY-SA 4.0

    Specs only · not reviewed yet · Model years 2023–2027

    77 MPGe

    42.1 kWh/100 mi

    Compare the 2023 Mercedes EQS SUV 580 4MATIC
  5. 5
    2023 Mercedes-Benz EQS SUV
    Photo credit

    Photo: LouieRBLX, CC BY-SA 4.0

    Specs only · not reviewed yet · Model years 2023–2027

    78 MPGe

    42.6 kWh/100 mi

    Compare the 2023 Mercedes EQS SUV 450 4MATIC
  6. 6
    2025 Rivian R1S
    Photo credit

    Photo: MercurySable99, CC BY-SA 4.0

    Specs only · not reviewed yet · Model years 2022–2027

    78 MPGe

    43.2 kWh/100 mi

    Compare the 2023 Rivian R1S Dual Large
  7. 7
    2025 Rivian R1S
    Photo credit

    Photo: MercurySable99, CC BY-SA 4.0

    Specs only · not reviewed yet · Model years 2022–2027

    71 MPGe

    47.4 kWh/100 mi

    Compare the 2023 Rivian R1S

How this list is made

  • Shorter bar, less energy per mile. Bars are measured from zero against the top value; the dark tick marks the average of all 7 ranked here.
  • Scores are John’s, shown only where he has scored a car, and they don’t affect the order. How John scores.
  • Each car’s page lists the source of every figure and when it was last checked.

New reviews and scores by email, usually twice a month. Unsubscribe in one click.