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BMW 4 Series G23 (2020–2024) Specs

Specifications, engines, dimensions and technical data.

Gen 2 2020 - 2025 G23 Coupe
BMW 4 Series
Engine —
Power —
Fuel —
Gears —
Platform —

Body Style



BMW 4 Series G23 overview

The BMW 4 Series (G23) is the 2nd generation of the 4 Series, built from 2020 to 2024. It is offered as a Coupe with 9 engines (petrol, diesel), from 170 HP to 382 HP. The 420i (170 Hp) Steptronic accelerates from 0 to 100 km/h in 8.6 s, reaches a top speed of 227 km/h and is 4783 mm long.

How much horsepower does the BMW 4 Series have?

The BMW 4 Series (G23) has 170 HP to 382 HP, depending on the engine: 2.0 B48 (170 HP), 2.0 N20 (184 HP), 2.0 B47 (190 HP), 2.0 B48 (245 HP), 2.0 B48 (258 HP), 3.0 B57 (286 HP), 3.0 B57 (340 HP), 3.0 B58 (374 HP), 3.0 B58 (382 HP).

What engines are available for the BMW 4 Series?

The BMW 4 Series is available with 9 engines: 2.0 B48 (170 HP, petrol), 2.0 N20 (184 HP, petrol), 2.0 B47 (190 HP, diesel), 2.0 B48 (245 HP, petrol), 2.0 B48 (258 HP, petrol), 3.0 B57 (286 HP, diesel), 3.0 B57 (340 HP, diesel), 3.0 B58 (374 HP, petrol), 3.0 B58 (382 HP, petrol).

What are the dimensions of the BMW 4 Series?

The BMW 4 Series is 4783 mm long, 1852 mm wide, 1442 mm tall, with a 2856 mm wheelbase.

How fast is the BMW 4 Series?

The BMW 4 Series 420i (170 Hp) Steptronic goes from 0 to 100 km/h in 8.6 s and has a top speed of 227 km/h.

Advanced Specs

Overview

Generation BMW 4 Series Gran Coupe G26
Year 2021–2024
Platform BMW CLAR
Variant 420i (170 Hp) Steptronic
Body type coupe
Engine type Fuel
Fuel type Petrol
Seats 5
Doors 5

Power & torque

Power 170 HP
Power @ min rpm 5000 rpm
Power @ max rpm 5500 rpm
Torque 250 Nm
Torque @ min rpm 2000 rpm
Torque @ max rpm 4400 rpm

Performance

Top speed 227 km/h
0–100 km/h 8.6 s
0–62 mph 8.6 s

Engine

Engine code B48B20M0
Displacement 1597 cc
Cylinders 4
Configuration inline
Bore 82.0 mm
Stroke 75.6 mm
Compression ratio 9
Valves per cylinder 4
Injection system Direct Injection
Aspiration Twin Power Turbo Intercooler
Valvetrain Valvetronic Double Vanos
Oil capacity 5.3 L
Engine layout Front Longitudinal
Engine systems Start Stop Systemparticulate Filter

Drivetrain & transmission

Drive Rear Wheel Drive
Powertrain architecture Internal Combustion Engine
Drivetrain architecture The Internal Combustion Engine Ice Drives The Rear Wheels Of The Vehicle
Gearbox type Torque Converter
Gears 8
Gearbox code 8hp51
Gearbox manufacturer zf

Dimensions

Length 4783 mm
Width 1852 mm
Height 1442 mm
Wheelbase 2856 mm
Front track 1595 mm
Rear track 1623 mm
Boot space 470 – 1290 L
Turning circle 12.0 m

Mass

Kerb weight 1620 kg
Max weight 2175 kg
Max load 555 kg

Consumption & emissions

Fuel tank 59.0 L

Chassis & brakes

Front suspension Spring Strut Transverse Stabilizer
Rear suspension Independent Multi Link Spring Suspension With Stabilizer
Front brakes Ventilated Discs
Rear brakes Ventilated Discs
Steering type Steering Rack And Pinion
Power steering Electric Steering
Tire size Front wheel tires: 225/55 R17; 245/45 R18; 245/40 R19; 245/35 R20Rear wheel tires: 225/55 R17; 245/45 R18; 255/40 R19; 255/35 R20
Wheel rims Front wheel rims: 7.5J x 17; 8.5J x 18; 8.5J x 19; 8.5J x 20Rear wheel rims: 7.5J x 17; 8.5J x 18; 9J x 19; 9J x 20
Assisting systems Abs Anti Lock Braking System

Efficiency ratios

Weight-to-power 9.5 kg/Hp, 104.9 Hp/tonne
Weight-to-torque 6.5 kg/Nm, 154.3 Nm/tonne
Max roof load 75 kg

Other

Start Of Production 2021
End Of Production 2024
Width Including Mirrors 2073
Front Overhang 862
Rear Overhang 1065

Performance

Engine speed (1k/rpm)

Figures from catalog data; real-world values may differ.

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