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2026 Audi S5 vs 2021 BMW i3

📊 Key Differences
  • Fuel economy: 23 MPG vs 113 MPG combined — BMW i3 is more efficient
  • Annual fuel cost: $3550 vs $650 — BMW i3 saves $ per year
  • Fuel type: Premium Gasoline vs Electricity
Specification 2026 Audi S5 2021 BMW i3
Year20262021
ClassMidsize CarsSubcompact Cars
Fuel TypePremium GasolineElectricity
DriveAll-Wheel DriveRear-Wheel Drive
TransmissionAutomatic (AM-S7)Automatic (A1)
Cylinders6
Displacement (L)3.0
City MPG20124
Highway MPG29102
Combined MPG23113
Annual Fuel Cost$3550$650
CO₂ (g/mile)386.0
EPA Fuel Economy Score5/1010/10
EPA GHG Score5/1010/10
🚗 2026 Audi S5

Midsize Cars with 23 MPG combined fuel economy. Runs on Premium Gasoline. All-Wheel Drive drivetrain.

Full Audi S5 Profile →
🚗 2021 BMW i3

Subcompact Cars with 113 MPG combined fuel economy. Runs on Electricity. Rear-Wheel Drive drivetrain.

Full BMW i3 Profile →