BMW i8 vs BMW 4 Series Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2023 BMW i8 1.5 Coupe
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2025 BMW 4 Series 3.0TD 440d xDrive
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Specs

2023 BMW i8
1.5 Coupe
2025 BMW 4 Series
3.0TD 440d xDrive
Powertrain 6-speed Automatic 8-speed Automatic
Drivetrain
4X4
4X4
Fuel economy, city -- --
Fuel economy, motorway -- --
Fuel tank volume 159 L 223 L
Engine
Fuel type
Hybrid
Diesel
Power
172 kW
250 kW
Torque
434 N-m @ 3,700 RPM
949 N-m @ 2,250 RPM
Cylinders
3 cylinders
6 cylinders
Engine size
1,499 cc
2,993 cc
Interior
Maximum seating 4 seats 4 seats
Front legroom -- --
Rear legroom -- --
Exterior
Length 119.1 m 121.16 m
Width 56.34 m 52.86 m
Height 32.79 m 35.38 m
Wheelbase 71.12 m 72.42 m

Available Options

2023 BMW i8
1.5 Coupe
2025 BMW 4 Series
3.0TD 440d xDrive

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