The BMW 3 Series vs Audi A4 are two iconic models in the compact executive car segment, and both have long been regarded as benchmarks of engineering, luxury, and driving experience. These two rivals share a similar price range, target market, and features but offer distinct performance, technology, and design approaches. Choosing between the two can be challenging, as each has unique strengths and appeal. This comprehensive guide aims to delve into various aspects, including design, performance, interior quality, technology, safety, and overall value, to help potential buyers decide which vehicle suits their needs best.
Table of Contents
Exterior Design and Styling
The car’s design is often the first aspect to capture attention, and the BMW 3 Series and Audi A4 offer sleek, modern aesthetics.
BMW 3 Series
The BMW 3 Series, particularly the latest G20 model, adopts an evolutionary approach to design while integrating aggressive and sharp lines. The kidney grille, a signature feature of BMW, has grown slightly larger with this iteration, giving the front fascia a commanding presence. Flanking the grille are sleek LED headlights, which give the car a contemporary yet classic look. The overall design language remains sporty, with a long bonnet, short overhangs, and a strong character line running along the side.
The rear of the 3 Series is equally dynamic, with L-shaped LED taillights and dual exhausts adding to its sporty flair. The car’s muscular stance and balanced proportions convey the essence of a performance-oriented executive sedan.
Audi A4
In contrast, the Audi A4 embodies a more understated elegance. Audi’s design philosophy leans towards a minimalist yet premium look. The front grille, dubbed the Singleframe, is broader and more angular in the latest iteration of the A4, providing a sophisticated touch. The sharp Matrix LED headlights (optional on higher trims) contribute to its high-tech appearance. At the same time, the bodywork flows smoothly, creating a more refined and elegant silhouette than the BMW’s sportiness.
The rear of the A4 features slender LED taillights connected by a subtle chrome strip, adding to its upscale feel. The overall design might appeal more to buyers seeking a car that exudes class and refinement rather than raw aggression.
Verdict:
The choice between the two comes down to personal preference. If you prefer a sporty, aggressive look, the BMW 3 Series is the better choice. On the other hand, if you lean towards elegance and understated luxury, the Audi A4 is likely to appeal more.
Performance and Driving Dynamics
Regarding performance, BMW and Audi offer different driving experiences, each suited to other types of drivers.
BMW 3 Series
The BMW 3 Series has long been renowned for its dynamic driving characteristics. It continues to be the enthusiast’s choice, with rear-wheel drive as standard (xDrive all-wheel drive is also available) and near-perfect 50:50 weight distribution. The 3 Series offers a range of engines, from the entry-level 2.0-litre four-cylinder petrol (320i) and diesel (318d, 320d) options to the mighty 3.0-litre six-cylinder M340i, which delivers 369 bhp and accelerates from 0-60 mph in just 4.2 seconds.
BMW’s suspension setup provides a firm yet comfortable ride, and its precise steering allows for an engaging driving experience. In particular, the 3 Series excels in corners, giving feedback and connection to the road that rivals struggle to match. The adaptive suspension system (optional) allows the driver to switch between comfort and sport modes, offering versatility for both relaxed cruising and spirited driving.
Audi A4
While offering strong performance, the Audi A4 takes a slightly different approach. Audi’s Quattro all-wheel-drive system is one of the best in the industry, providing excellent traction and stability in various weather conditions. The A4’s ride is generally smoother and more refined than the 3 Series, making it ideal for long motorway journeys.
The Audi A4 comes with a selection of engines, including the 2.0-litre four-cylinder TFSI petrol engine, available in several power outputs (35 TFSI with 148 bhp, 40 TFSI with 201 bhp, and the 45 TFSI with 261 bhp). There are also diesel options available, including the 2.0-litre TDI, which is ideal for those seeking fuel efficiency. However, Audi’s sportier models, such as the S4, which boasts a 3.0-litre V6 engine producing 349 bhp, can give the 3 Series a run regarding raw power and acceleration.
While the A4’s handling is not as sharp as that of the 3 Series, it provides a more comfortable and composed ride. Audi emphasizes comfort, making the A4 a perfect choice for those who prioritise refinement over sheer driving thrills.
Verdict:
The BMW 3 Series remains the top pick for driving enthusiasts due to its rear-wheel-drive setup, sharper handling, and driver-focused dynamics. If comfort, stability, and an all-weather driving experience are higher on your list, the Audi A4 with its Quattro system is the better option.
Interior Quality and Comfort
BMW and Audi have earned a reputation for building high-quality interiors; the 3 Series and A4 are no exceptions.
BMW 3 Series
The interior of the BMW 3 Series is focused on the driver, with a cockpit-like layout that feels intuitive and practical. The materials used throughout are of high quality, including soft-touch plastics, leather upholstery, and aluminium or wood trim, depending on the specification. The latest iDrive infotainment system, accessed via a central 8.8-inch or optional 10.25-inch touchscreen, is one of the most user-friendly in the industry. It can be controlled through the rotary dial, voice commands, or even hand gestures.
The 3 Series has adequate space for front and rear passengers, although the sloping roofline might make rear headroom a bit tight for taller individuals. The seats are supportive, especially with the optional sports seats, making long journeys comfortable.
Audi A4
The Audi A4’s interior is a masterclass in minimalism and luxury. The dashboard design is clean, uncluttered, and user-friendly, with high-quality materials used throughout. Audi’s Virtual Cockpit, a 12.3-inch digital display that replaces traditional dials, is a standout feature, offering customisable views for navigation, media, and driving information. The A4’s MMI infotainment system, controlled via a 10.1-inch touchscreen, is equally intuitive, though it lacks the physical controls of BMW’s iDrive, which some users might miss.
The A4’s cabin is slightly more spacious than the 3 Series, particularly in the rear, where head and legroom are better suited to taller passengers. The plush seats provide excellent comfort, making the A4 an ideal choice for long drives.
Verdict:
Both interiors are outstanding, but if you prefer a more tech-focused, minimalist design with superior rear space, the Audi A4 takes the lead. For those who enjoy a more driver-oriented setup with intuitive controls, the BMW 3 Series is a better option.
Technology and Infotainment
In the realm of technology, the 3 Series and A4 pack have many features to enhance convenience, safety, and entertainment.
BMW 3 Series
BMW’s iDrive system is one of the market’s most highly praised infotainment systems. The 3 Series has an 8.8-inch touchscreen as standard, with an optional 10.25-inch display. The system is responsive, easy to navigate, and offers multiple input methods, including a rotary dial, voice control, and gesture control. Apple CarPlay is included as standard, but Android Auto is a more recent addition to the system.
Regarding safety features, the 3 Series comes with automatic emergency braking, lane departure warning, and blind-spot monitoring as standard. Higher trims or options packages include adaptive cruise control, traffic jam assist, and a 360-degree camera system.
Audi A4
The Audi A4 boasts its impressive technology suite. The Virtual Cockpit is a unique feature that elevates the driving experience, with its clear, configurable digital display that can show maps, media, or standard instrument dials. The A4’s MMI infotainment system is quick, responsive, and integrates seamlessly with Apple CarPlay and Android Auto.
Audi also provides a range of standard advanced safety features, such as forward collision warning, automatic emergency braking, and lane-keeping assistance. Optional extras include adaptive cruise control with stop-and-go functionality and a parking assistance system.
Verdict:
The BMW 3 Series has a more user-friendly infotainment system, but Audi’s Virtual Cockpit is a standout feature that adds sophistication. Both cars are equally matched regarding safety technology, though the 3 Series may edge out slightly in user interface flexibility.
Fuel Efficiency and Running Costs
BMW 3 Series
The BMW 3 Series offers competitive fuel efficiency, especially in its diesel variants. The 320d, for example, offers up to 56.5 mpg, making it an excellent option for long-distance commuters. The petrol variants, such as the 320i, offer slightly lower figures, around 42-45 mpg. The 3 Series is also available as a plug-in hybrid (330e), which offers up to 201.8 mpg in combined electric and petrol driving.
BMWs tend to have higher maintenance and servicing costs, but the company offers various service packages to mitigate long-term expenses.
Audi A4
The Audi A4’s fuel economy is similar to that of the BMW. The diesel variants, like the 35 TDI, offer up to 57.6 mpg, while the petrol variants, like the 35 TFSI, provide up to 44.8 mpg. Audi also offers a plug-in hybrid model (A4 TFSI e), which delivers impressive fuel economy figures when driven in electric mode.
Audi’s running costs, in terms of servicing and repairs, are comparable to BMW’s. However, Audi’s cars are sometimes considered slightly cheaper to maintain due to fewer required visits for routine maintenance.
Verdict:
Both cars are closely matched in terms of fuel efficiency, with strong performance from their diesel and hybrid options. Audi may have a slight edge in long-term running costs.
Price and Value for Money
BMW 3 Series
The BMW 3 Series starts at around £36,000 for the base model (318i) and goes up to over £50,000 for the high-performance M340i. Additional options like larger screens, adaptive suspension, and premium audio systems can raise the price considerably. However, the 3 Series offers excellent residual values, making it a solid investment for reselling.
Audi A4
The Audi A4 starts at a slightly lower price point, with the base model (35 TFSI) starting at around £34,000. Higher trims like the S4 can reach £50,000 or more, especially when options are added. Like the 3 Series, the A4 holds its value well and is considered a good investment.
Verdict:
The Audi A4 is marginally more affordable at the base level, but both cars offer excellent value for money, considering the technology, performance, and luxury they provide.
Conclusion: BMW 3 Series vs Audi A4?
The BMW 3 Series and Audi A4 are both exceptional choices in the compact executive segment but cater to slightly different audiences.
- The BMW 3 Series is the car to choose if you prioritise sporty driving dynamics, a driver-focused interior, and sharp handling. Its performance and engaging driving experience make it the better option for enthusiasts.
- The Audi A4 excels in comfort, refinement, and technology, offering a smoother, more luxurious ride. It’s interior space and minimalist design, combined with Audi’s Quattro all-wheel-drive system, make it ideal for those seeking an elegant and comfortable experience.