The BMW 4 Series is a range of sporty luxury cars from BMW. It includes different body styles, engines, and performance levels. Buyers can choose from coupe, convertible, and Gran Coupe models. Each variant offers a different mix of power, comfort, and daily practicality.

Choosing the right model can be confusing. Some variants focus on comfort and fuel economy. Others offer stronger engines and sharper driving performance. The M4 models take performance even further. This makes the 4 Series suitable for different types of drivers.

In this guide, we will explore the main BMW 4 Series variants in detail. We will look at their engines, performance, features, and body styles. We will also highlight the key differences between the models. This will help you understand what makes each variant different.

Standard Models

The BMW 4 Series standard models are designed for drivers who want luxury and sporty performance without stepping into the full M range. Depending on the market, common versions include the 420i, 430i, 420d, and 430d. Petrol models use BMW TwinPower Turbo engines, while diesel versions focus on strong torque and long-distance efficiency.

The 420i is usually positioned as an entry point to the range. It offers smooth power and a comfortable driving feel. The 430i adds more engine performance and quicker acceleration. Diesel variants such as the 420d and 430d are suited to drivers who want strong low-speed torque and better fuel economy for regular highway use.

Standard models also offer a good balance of technology and comfort. Features can include a curved display, BMW navigation, driver assistance systems, and modern connectivity. Body styles vary between Coupe, Convertible, and Gran Coupe models. This gives buyers more choice based on their lifestyle and driving needs.

BMW 420i

The BMW 420i is one of the more accessible petrol variants in the 4 Series range. It uses a 2.0-liter four-cylinder turbocharged petrol engine. Power output can vary by market and model year. The engine is paired with an automatic transmission and delivers smooth everyday performance.

The 420i focuses on a balanced driving experience. It has enough power for city driving and highway trips. The steering feels precise, while the suspension keeps the ride controlled. Rear-wheel drive is available on many versions, although drivetrain options can differ between markets.

Inside, the 420i combines a sporty layout with modern technology. It can feature BMW’s curved display, digital instruments, navigation, and smartphone connectivity. The Coupe gives it a more focused character, while the Gran Coupe offers extra practicality. This makes the 420i a flexible choice within the standard 4 Series range.

BMW 428i

The BMW 428i was a four-cylinder petrol variant of the 4 Series. It was mainly offered during the early years of the model. It used BMW’s 2.0-liter turbocharged four-cylinder engine. The engine was part of BMW’s TwinPower Turbo family and delivered a strong mix of power and efficiency.

The 428i was offered with rear-wheel drive in many markets. An xDrive all-wheel-drive version was also available in selected markets. The automatic transmission was common, while some markets also offered a manual gearbox. Its balanced chassis made it enjoyable on both city roads and open highways.

The 428i also combined sporty styling with everyday comfort. It came with features such as leather or sport seats, automatic climate control, and BMW’s iDrive system, depending on the specification. The model was available as a Coupe and Convertible, giving buyers two different ways to enjoy the 4 Series experience.

BMW 430i

The BMW 430i is a popular petrol variant in the 4 Series lineup. It uses a 2.0-liter turbocharged four-cylinder engine. In recent generations, this engine produces around 255 hp, although output can vary by model year and market. Power is sent through an eight-speed automatic transmission.

The 430i offers a good balance between performance and daily comfort. It can accelerate quickly without feeling too aggressive. Rear-wheel drive is offered on many versions. BMW also offers xDrive all-wheel drive on selected 430i models. The suspension keeps the car stable while still providing a comfortable ride.

The cabin gives the 430i a modern and premium feel. It can include BMW’s curved display, digital instruments, navigation, and smartphone connectivity. The Coupe has a sporty character, while the Gran Coupe adds useful rear-seat and cargo space. This makes the 430i suitable for both daily driving and longer trips.

Performance Models

The BMW 4 Series performance models add more power and sharper driving ability to the lineup. They sit above the regular 4 Series variants. These models use stronger engines and performance-focused hardware. The M440i is the main M Performance model in this group.

The M440i xDrive uses a 3.0-liter turbocharged inline-six engine. Recent versions produce around 386 hp and use an eight-speed automatic transmission. The mild-hybrid system also supports the engine in newer models. xDrive all-wheel drive helps deliver strong traction during hard acceleration.

Performance models also receive sportier chassis tuning and stronger brakes. The M440i can have an adaptive M suspension and an M Sport differential, depending on the specification. It also gets distinctive exterior details and sport seats. These changes give the car a more focused character while keeping it comfortable for everyday use.

BMW 435i

The BMW 435i was a performance-focused version of the first-generation 4 Series. It was offered before the 440i replaced it. The 435i used BMW’s 3.0-liter turbocharged inline-six engine. It produced about 300 hp and 300 lb-ft of torque in many markets.

The 435i delivered strong acceleration and smooth power. It was available with rear-wheel drive and xDrive all-wheel drive, depending on the market. Buyers could also choose between manual and automatic transmissions in some versions. Its rear-wheel-drive layout and balanced chassis gave it a sporty driving feel.

The 435i was available as a Coupe and Convertible. It combined sporty handling with the comfort expected from a BMW. Features varied by year and trim level. Options included sport seats, adaptive suspension, upgraded brakes, and BMW’s iDrive technology. The 435i remains an interesting choice for drivers looking for an older performance-oriented 4 Series.

BMW 440i

The BMW 440i was introduced as a stronger replacement for the 435i. It used BMW’s 3.0-liter turbocharged inline-six engine. In the F32-generation 440i, the engine produced 320 hp and 330 lb-ft of torque. It was offered in Coupe and Convertible body styles, while drivetrain options varied by market.

The 440i delivered quick acceleration and strong mid-range power. It was available with rear-wheel drive or xDrive all-wheel drive. A six-speed manual transmission was offered on some rear-wheel-drive versions. An eight-speed automatic was also available. This gave drivers a choice between traditional engagement and easy daily driving.

The cabin kept the premium feel of the 4 Series. Sport seats, iDrive, navigation, and driver assistance features were available depending on the model and options. The chassis also supported sporty handling without making the car difficult to use every day. The 440i was a strong bridge between the regular 4 Series models and the full M4.

M Performance Models

BMW M Performance models sit between the standard 4 Series cars and the full M4. They offer more power and sharper handling. The M440i is the main example in the current lineup. It combines a powerful inline-six engine with everyday comfort.

The M440i xDrive uses a 3.0-liter turbocharged inline-six engine. Recent versions produce around 386 hp and 369 lb-ft of torque. A 48-volt mild-hybrid system supports the engine in newer models. The eight-speed automatic transmission sends power to all four wheels through xDrive.

M Performance models also receive several chassis upgrades. These can include M Sport brakes, adaptive M suspension, and an M Sport differential. Exterior details also give the car a sportier look. Inside, sport seats and M-specific trim add to the driving-focused character. The result is a car that offers strong performance without giving up daily usability.

BMW M440i

The BMW M440i is the main M Performance variant of the 4 Series. It uses a 3.0-liter turbocharged inline-six engine. In recent models, it produces up to 386 hp and 369 lb-ft of torque. A 48-volt mild-hybrid system supports the engine for smoother power delivery and better efficiency.

The M440i xDrive sends power through an eight-speed automatic transmission. Its all-wheel-drive system provides strong traction during acceleration. The car can also use an adaptive M suspension for better body control. M Sport brakes and an M Sport differential are available to improve handling.

The M440i also has a sporty cabin and distinctive exterior details. It can include M Sport seats, an M steering wheel, and special interior trim. The BMW Curved Display provides modern digital controls and information. It offers strong performance while remaining comfortable enough for daily driving.

BMW M440d

The BMW M440d is a diesel-powered M Performance variant of the 4 Series. It uses a 3.0-liter turbocharged inline-six diesel engine. In the G22-generation model, it produces around 340 hp and 700 Nm of torque. A 48-volt mild-hybrid system adds extra electric assistance during acceleration.

The M440d comes with an eight-speed automatic transmission. xDrive all-wheel drive is standard on this model in many markets. The strong torque gives it quick acceleration and relaxed highway performance. It also suits drivers who regularly cover long distances.

The M440d has a sporty design with M Performance details. It can feature larger brakes, sportier suspension tuning, and distinctive M trim. The cabin includes modern digital displays and premium materials. It combines diesel efficiency, strong torque, and everyday comfort in one 4 Series model.

Diesel Models

The BMW 4 Series diesel models have been offered mainly in European and selected international markets. They use turbocharged diesel engines with strong low-end torque. Common versions have included the 420d, 430d, and M440d. These models suit drivers who want long-distance comfort and lower fuel use.

The 420d uses a 2.0-liter four-cylinder diesel engine. It provides a good balance of power and efficiency. The 430d and M440d use 3.0-liter six-cylinder diesel engines. They produce more torque and deliver stronger acceleration. Exact outputs vary by generation and model year.

Diesel variants are especially useful for highway driving. Their strong torque makes overtaking easier and keeps engine speeds low at cruising speeds. Automatic transmissions are common across the range. Depending on the model, rear-wheel drive or xDrive all-wheel drive may be available. This gives buyers different options for performance, traction, and everyday use.

BMW 418d

The BMW 418d was an entry-level diesel variant of the 4 Series. It was mainly available in selected European markets. It used a 2.0-liter four-cylinder turbocharged diesel engine. Depending on the model year, power output was around 143 hp in earlier versions and later increased with newer engine updates.

The 418d focused on fuel economy rather than outright speed. Its diesel engine delivered useful torque at low engine speeds. This made it comfortable for city trips and longer highway journeys. Rear-wheel drive was used on many versions, while transmission choices depended on the market and model year.

The 418d was offered with the Gran Coupe and other body styles in selected markets and years. Its cabin provided the same basic premium character found across the 4 Series range. Equipment varied by specification. Buyers could choose features such as navigation, sport seats, parking sensors, and upgraded infotainment systems.

BMW 420d

The BMW 420d is a four-cylinder diesel variant of the 4 Series. It has been offered across several generations, mainly in European markets. Recent versions use a 2.0-liter turbocharged diesel engine. Output varies by generation, with newer models producing around 190 hp.

The 420d balances power and fuel economy. Its diesel engine provides strong torque at low engine speeds. This makes it useful for city traffic and long highway trips. Depending on the generation, it can be paired with rear-wheel drive or BMW xDrive all-wheel drive.

The 420d also offers a comfortable and refined cabin. Equipment varies by model year and trim. Features can include digital displays, navigation, parking assistance, and smartphone connectivity. For drivers who cover many miles, the 420d provides a practical mix of efficiency, comfort, and performance.

BMW 425d

The BMW 425d was a diesel-powered 4 Series variant from the F32 and F36 generation era. It used a 2.0-liter four-cylinder twin-turbo diesel engine. In many European-market versions, it produced around 218 hp and 450 Nm of torque. It offered more power than the 420d while keeping the efficiency benefits of a smaller diesel engine.

The 425d was paired with an eight-speed automatic transmission in many markets. Rear-wheel drive was common, while availability could vary by body style and market. Its strong torque made acceleration feel smooth and effortless. It was also well suited to motorway driving and long-distance trips.

The 425d was available in body styles such as the Coupe and Gran Coupe, depending on the market. Its cabin offered the same premium design found across the 4 Series range. Optional equipment included sport seats, navigation, parking sensors, and upgraded audio systems. The 425d therefore combined useful diesel performance with everyday comfort.

BMW 430d

The BMW 430d is a six-cylinder diesel variant of the 4 Series. It has appeared in different generations and markets. Recent versions use a 3.0-liter turbocharged inline-six diesel engine. The G22 430d produces around 286 hp and 650 Nm of torque.

The strong diesel engine gives the 430d quick and smooth acceleration. Its high torque is useful during overtaking and highway driving. An eight-speed automatic transmission is used on newer versions. xDrive all-wheel drive is also available on the current 430d in many markets.

The 430d combines performance with long-distance comfort. It can include an adaptive M suspension and M Sport brakes, depending on the specification. Inside, the cabin features modern displays and premium materials. It is a practical option for drivers who want six-cylinder performance with diesel efficiency.

BMW 435d

The BMW 435d was a high-performance diesel variant of the F32-generation 4 Series. It used a 3.0-liter six-cylinder diesel engine with two turbochargers. The engine produced around 313 hp and 630 Nm of torque. This gave the 435d strong performance while retaining diesel efficiency.

The 435d was paired with an eight-speed automatic transmission. xDrive all-wheel drive was standard on the 435d. The system helped manage its high torque and provided strong traction. Its quick acceleration made it one of the fastest diesel models in the regular 4 Series range.

The 435d also received sporty chassis and exterior details. M Sport equipment was commonly included, depending on the market. Inside, it offered supportive seats and BMW’s iDrive infotainment system. The 435d was suited to drivers who wanted strong performance, long-distance comfort, and diesel economy in one car.

BMW M Models

The BMW M models sit at the top of the 4 Series performance range. The main model is the BMW M4. It is developed by BMW M and has a stronger engine, sharper chassis tuning, and more aggressive styling than standard 4 Series models. The M4 is available in different body and drivetrain configurations.

The current M4 uses a 3.0-liter twin-turbocharged inline-six engine. Depending on the version, power ranges from around 473 hp to more than 500 hp. The M4 Competition xDrive adds all-wheel drive for extra traction. Some versions also use an eight-speed automatic transmission, while the rear-wheel-drive M4 can be paired with a six-speed manual.

M models receive major performance upgrades. These can include adaptive M suspension, stronger brakes, an active M differential, and wider tires. The cabin also gets M-specific seats, trim, and controls. These changes give the M4 a more focused driving character while keeping the comfort and technology expected from a modern BMW.

BMW M4

The BMW M4 is the high-performance model in the 4 Series family. It is developed by BMW M and uses a 3.0-liter twin-turbocharged inline-six engine. The current M4 produces up to around 523 hp in the Competition xDrive version. Power figures vary by model and market.

The M4 is available with different drivetrain and transmission setups. Rear-wheel-drive versions can be paired with a six-speed manual transmission. Competition models use an eight-speed automatic transmission. The M4 Competition xDrive adds all-wheel drive for stronger traction and faster acceleration.

The M4 also has a performance-focused chassis. It can feature adaptive M suspension, an active M differential, and high-performance brakes. The cabin includes M-specific seats, displays, and controls. With its aggressive design and strong engine, the M4 is built for drivers who want a more focused version of the 4 Series.

BMW M4 Competition

The BMW M4 Competition is a more powerful version of the M4. It uses a 3.0-liter twin-turbocharged inline-six engine. In the current generation, the Competition model produces around 503 hp with rear-wheel drive. The xDrive version produces around 523 hp. Exact figures can vary by market and model year.

The Competition uses an eight-speed automatic transmission. The xDrive version sends power to all four wheels. It also has an active M differential and adaptive M suspension. These systems help the car maintain traction and control during fast driving. The steering and brakes are also tuned for stronger performance.

The M4 Competition has a more aggressive exterior design. It features larger wheels, M-specific body details, and performance brakes. Inside, it can include sport seats, carbon-fiber trim, and an M steering wheel. It combines everyday comfort with the stronger performance expected from a BMW M model.

BMW M4 Competition xDrive

The BMW M4 Competition xDrive is an all-wheel-drive performance model in the M4 range. It uses a 3.0-liter twin-turbocharged inline-six engine. Recent versions produce around 523 hp and 479 lb-ft of torque. The engine works with an eight-speed automatic transmission.

The xDrive system sends power to all four wheels when extra traction is needed. It can also vary how power is distributed between the axles. The M4 Competition xDrive includes adaptive M suspension and an active M differential. These systems help keep the car stable during hard acceleration and fast cornering.

The exterior has a wide stance and distinctive M design details. Large wheels and powerful brakes support its performance. Inside, the cabin features sport seats and M-specific controls. The car also offers modern digital displays and connectivity features. It combines everyday comfort with strong performance and all-weather traction.

BMW M4 CSL

The BMW M4 CSL is a limited-production, track-focused version of the G82 M4. BMW built it to reduce weight and increase performance. It uses a 3.0-liter twin-turbocharged inline-six engine. The engine produces 543 hp and 479 lb-ft of torque. Power is sent to the rear wheels through an eight-speed automatic transmission.

BMW reduced weight by using carbon-fiber parts and lightweight components. The CSL also has carbon-fiber seats, a lighter rear setup, and thinner glass in selected areas. Its suspension is specially tuned for faster driving. Stronger brakes and performance tires provide additional control. These changes make the CSL more focused than a standard M4.

The M4 CSL also has unique exterior details. It features a larger front splitter, special rear design elements, and distinctive badging. The cabin has lightweight M Carbon bucket seats and fewer comfort-focused features. BMW limited production to around 1,000 units worldwide, making the CSL a rare version of the M4.

BMW M4 CS

The BMW M4 CS is a special high-performance version of the M4. It sits between the M4 Competition and the more track-focused M4 CSL in BMW’s performance lineup. The current M4 CS uses a 3.0-liter twin-turbocharged inline-six engine. It produces around 543 hp and 650 Nm of torque.

The M4 CS comes with M xDrive all-wheel drive and an eight-speed automatic transmission. BMW also gives it special suspension tuning for sharper handling. Lightweight components help reduce its weight compared with the regular M4 Competition. Larger brakes and performance tires support stronger control during fast driving.

The exterior has several carbon-fiber parts and unique CS details. The cabin includes M Carbon bucket seats and special trim. Red accents and CS badging give it a distinctive look. The M4 CS combines strong road performance with track-focused hardware while still keeping useful comfort features for everyday driving.

Conclusion

The BMW 4 Series variants offer many choices for different drivers. Standard models focus on comfort and everyday use. Diesel versions add strong torque and fuel efficiency. M Performance models bring more power and sharper handling. The M4 models take performance to a much higher level.

Each variant has its own purpose and character. The 420i and 430i suit daily driving, while models like the 420d and 430d work well for long trips. The M440i and M440d offer stronger performance with everyday comfort. The M4, M4 Competition, CSL, and CS focus more heavily on driving performance.

FAQs

1. What are the main BMW 4 Series variants?
The range includes standard petrol and diesel models, M Performance versions, and high-performance M4 models.

2. What is the BMW 430i?
The 430i is a petrol model with a 2.0-liter turbocharged four-cylinder engine. It balances performance, comfort, and daily usability.

3. What is the BMW M440i?
The M440i is an M Performance model with a 3.0-liter turbocharged inline-six engine and stronger performance than the regular 4 Series models.

4. Which BMW 4 Series models use diesel engines?
Diesel options have included the 418d, 420d, 425d, 430d, 435d, and M440d, depending on the generation and market.

5. What is the BMW M4 CSL?
The M4 CSL is a limited-production, lightweight performance model. It uses a more powerful engine and track-focused chassis upgrades.