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Most Fuel-Efficient Midsize Cars in 2026

  1. 101

    2025 Mercedes-Benz AMG S63 E Performance

    Midsize · All-Wheel Drive · Plug-in hybrid

    Plug-in hybrid 4.0 L 8-cyl turbo 15 city · 23 hwy
    Combined MPG· $4,550 fuel a year18 MPG
    $4,550fuel a year
  2. 102

    2025 BMW M8 Competition Gran Coupe

    Midsize · All-Wheel Drive · Gas

    4.4 L 8-cyl turbo 15 city · 22 hwy
    Combined MPG· $4,850 fuel a year17 MPG
    $4,850fuel a year
  3. 103

    2026 Audi RS 7

    Midsize · All-Wheel Drive · Hybrid

    Hybrid 4.0 L 8-cyl turbo 14 city · 21 hwy
    Combined MPG· $5,150 fuel a year16 MPG
    $5,150fuel a year
  4. 104

    2026 Cadillac CT5 V

    Midsize · Rear-Wheel Drive · Gas

    6.2 L 8-cyl supercharged 13 city · 20 hwy
    Combined MPG· $5,500 fuel a year15 MPG
    $5,500fuel a year
  5. 105

    2027 BMW M5 Sedan

    Midsize · All-Wheel Drive · Plug-in hybrid

    Plug-in hybrid 4.4 L 8-cyl turbo 12 city · 19 hwy
    Combined MPG· $5,850 fuel a year14 MPG
    $5,850fuel a year

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Photo credits on this page
  • BMW M8 · © M 93 · CC BY-SA 3.0 de · Wikimedia Commons
  • Mercedes-Benz S-Class · David Adam Kess · CC BY-SA 4.0 · Wikimedia Commons
  • Audi RS7 · Alexander Migl · CC BY-SA 4.0 · Wikimedia Commons
  • Cadillac CT5 · Elise240SX · CC BY-SA 4.0 · Wikimedia Commons
  • BMW M5 · Alexander-93 · CC BY-SA 4.0 · Wikimedia Commons