Beyond minor changes here and there, the BMW 4-Series has remained the same since it branched off from being the two-door version of the 3-Series in 2014. That’s going to change, as BMW is set to introduce an all-new, second-gen 4-Series for the 2021 model year. The 2021 4-Series wears BMW’s new controversial face and features a mild-hybrid system for improved efficiency, as well as performance.
Visually, the upcoming 4-Series is a more striking vehicle than before, though the majority of people will be split on whether that’s a good thing. The new 4-Series is fitted with BMW’s oversized kidney grilles at the front that were first unveiled on the Concept 4 from the 2019 Frankfurt Motor Show. Besides the new grilles, the new 4-Series wears sharper LED headlights and enlarged air intakes. Dimension wise, the 4 Series grows by 5.2 inches in length, 1 inch in width, and 0.4 inches in height over the old one. At the back, the 4-Series adopts a more sloping roofline that resembles the one found on the larger 8-Series. The taillights, exhaust outlets, and rear bumper have been redesigned to be much more upscale.
On the inside, the 2021 4-Series looks like a carbon copy of the new 3-Series. The design has been simplified, especially the layout of the center console, to put a greater emphasis on technology. That’s not to say the new 4-Series isn’t attractive, it certainly is thanks to sharp edges. Tech gets upgraded, as the new 4-Series will come with a 5.1-inch display in the instrument cluster and an 8.8-inch touchscreen. BMW’s latest iDrive 7 infotainment system is included and brings wireless Apple CarPlay and Android Auto. A 10.3-inch touchscreen and a 12.3-inch digital gauge cluster are available, the latter coming with Live Cockpit Professional.
An available M Sport Package, which is offered on the 430i and 430i xDrive, brings an aerodynamic kit, 19-inch wheels, and an M steering wheel that give the 4-Series a more aggressive look.
Changes for the 4-Series have occurred under the hood, too. The 430i comes with a turbocharged 2.0-liter four-cylinder engine producing 255 horsepower and 294 pound-feet of torque. Rear-wheel drive is standard, while 430i xDrive models come with all-wheel drive. The M440i xDrive is powered by a turbocharged 3.0-liter inline-six-cylinder engine that features a 48-volt mild-hybrid system. Output for the six-cylinder engine is rated at 382 hp and 326 lb-ft of torque. An eight-speed automatic transmission is the only one offered with the 4-Series.
For 2021, every 4-Series will come with pedestrian warning, automatic emergency braking, blind spot monitoring, lane departure warning, lane keep assist, rear cross-traffic alert, automatic high beams, traffic sign recognition, and rear collision preparation. It’s an extensive list of advanced safety features that should help the new 4-Series stand out in the class. BMW’s Driving Assistance Professional Package is optional and brings adaptive cruise control with stop and go, as well as the automaker’s Extended Traffic Jam assist feature that can control the majority of driving on the highway. A panoramic view camera, 3D surround-view cameras, and park assist are available. A drive recorder, which uses the 4-Series’ cameras to record video footage from the front or rear of the vehicle is also a new optional feature for the 2021 model year.