BMW 4 Series vs BMW 8 Series Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2025 BMW 4 Series 3.0TD 440d xDrive
Photo of 2020 model year shown

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2024 BMW 8 Series 3.0 840i M Sport Convertible 2d
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Specs

2025 BMW 4 Series
3.0TD 440d xDrive
2024 BMW 8 Series
3.0 840i M Sport Convertible 2d
Powertrain 8-speed Automatic 8-speed Automatic
Drivetrain
4X4
RWD
Fuel economy, city -- --
Fuel economy, motorway -- --
Fuel tank volume 223 L 257 L
Engine
Fuel type
Diesel
Petrol
Power
250 kW
245 kW
Torque
949 N-m @ 2,250 RPM
678 N-m @ 4,000 RPM
Cylinders
6 cylinders
6 cylinders
Engine size
2,993 cc
2,998 cc
Interior
Maximum seating 4 seats 4 seats
Front legroom -- --
Rear legroom -- --
Exterior
Length 121.16 m 123.22 m
Width 52.86 m 54.28 m
Height 35.38 m 34.16 m
Wheelbase 72.42 m 71.68 m

Available Options

2025 BMW 4 Series
3.0TD 440d xDrive
2024 BMW 8 Series
3.0 840i M Sport Convertible 2d

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