When comparing the BMW M340i vs BMW M3, you’ll notice two distinct approaches to high-performance sedans. The M3, a track-ready vehicle, delivers superior performance capabilities with its advanced engineering and higher horsepower. In contrast, the BMW M340i xDrive offers a balanced blend of driving dynamics and practicality, making it an excellent choice for daily use. While the M3 competition caters to enthusiasts seeking a performance model with exclusivity, the top-spec M340i provides a cost-effective alternative without compromising comfort or speed. Both models showcase BMW’s commitment to innovation and driving excellence.
Key Takeaways
-
The BMW M3 has more power and better features. It is great for people who love racing tracks.
-
The BMW M340i mixes comfort and speed, making it good for daily use.
-
Pick the M340i if you want a cheaper car with better gas mileage. It saves money for everyday driving.
-
The M3 has a harder suspension and sporty design. This helps with control but may feel less comfy on long trips.
-
Both cars show BMW’s focus on new ideas, offering choices for speed or comfort.
Engine and Performance: BMW M340i vs BMW M3
Engine Specifications and Design
When comparing the engines of the BMW M340i and BMW M3, you’ll notice distinct differences in design and purpose. The BMW M340i features a 3.0-liter turbocharged inline-six engine, known as the B58. This engine delivers 382 horsepower and is engineered for a balance of sporty performance and everyday comfort. On the other hand, the BMW M3 takes performance to the next level with its twin-turbocharged inline-six engines. The base M3 produces 473 horsepower, while the Competition variant pushes this to an impressive 503 horsepower. These engines, designated as the S55 or S58, are designed for extreme performance and track readiness.
The M340i comes exclusively with an 8-speed automatic transmission, ensuring smooth shifts and ease of use during daily driving. In contrast, the M3 offers both a 6-speed manual and an 8-speed automatic, catering to enthusiasts who prefer a more engaging driving experience. Additionally, the M3 incorporates advanced features like the Active M Differential and M Drive Professional, which enhance its handling and track capabilities.
Power, Torque, and Acceleration
The power and torque figures further highlight the performance gap between the M340i and M3. The M340i generates 369 lb-ft of torque, allowing it to accelerate from 0-60 mph in approximately 4.1 to 4.4 seconds. While impressive, the M3 outshines it with torque ranging from 406 lb-ft in the base model to 479 lb-ft in the Competition variant. This results in a quicker 0-60 mph time of 3.4 to 4.1 seconds, depending on the configuration.
Model |
Horsepower |
Torque |
0-60 MPH |
---|---|---|---|
BMW M340i |
382 HP |
369 lb-ft |
4.1 to 4.4 Seconds |
BMW M3 (Base) |
473 HP |
406 lb-ft |
3.4 to 4.1 Seconds |
BMW M3 (Comp.) |
503 HP |
479 lb-ft |
3.4 to 4.1 Seconds |
The M3’s superior power and torque make it the clear choice for those seeking a high-performance model.
Top Speed and Power-to-Weight Ratio
Top speed and power-to-weight ratio are critical factors in evaluating performance. The M340i and M3 both have electronically limited top speeds, but the M3’s lighter weight and higher power output give it a significant edge. The M340i weighs approximately 3,850 lbs, while the M3 ranges from 3,600 to 3,850 lbs, depending on the trim. This weight difference, combined with the M3’s higher horsepower, results in a better power-to-weight ratio, enhancing its agility and responsiveness.
Model |
Horsepower |
Weight |
Power-to-Weight Ratio |
---|---|---|---|
BMW M340i |
382 HP |
~3,850 lbs |
Moderate |
BMW M3 (Base) |
473 HP |
~3,600 lbs |
Superior |
BMW M3 (Comp.) |
503 HP |
~3,850 lbs |
Exceptional |
The M3’s engineering prioritizes performance, making it the ideal choice for track enthusiasts, while the M340i offers a more practical balance for daily driving.
Driving Experience: M340i vs M3
Handling and Cornering Dynamics
When it comes to handling, the BMW M3 stands out as a true performance model. Its stiffer suspension, advanced chassis design, and performance-oriented components deliver exceptional feedback and connection to the road. The M3 feels more agile and responsive, making it ideal for driving enthusiasts who crave a sporty driving experience. Features like the Active M Differential and adjustable M suspension further enhance its cornering capabilities, allowing you to tackle sharp turns with confidence.
The BMW M340i, on the other hand, offers a more balanced approach. Its adaptive M suspension provides a blend of comfort and sportiness, making it suitable for both spirited drives and daily commutes. While it may not match the M3’s razor-sharp handling, the M340i still delivers impressive driving dynamics, ensuring a fun and engaging experience behind the wheel.
Comfort and Ride Quality
The BMW M340i excels in comfort, making it a practical choice for everyday use. Its spacious and refined interior, combined with a smoother ride, ensures a pleasant experience for both drivers and passengers. The adaptive M suspension absorbs road imperfections effectively, providing a comfortable ride even on uneven surfaces. This makes the BMW M340i xDrive an excellent option for those who prioritize comfort without sacrificing performance.
In contrast, the M3 focuses on sportiness, which comes at the expense of ride comfort. Its firmer suspension and heavily bolstered seats are designed to keep you connected to the road, but they may feel less forgiving during long drives. While the M3 offers a luxurious cabin, its primary focus remains on delivering a performance-oriented experience.
Real-World Performance and Practicality
The M340i strikes a perfect balance between performance and practicality. Its 382-horsepower engine provides ample power for most driving scenarios, while its 369 lb-ft of torque ensures smooth acceleration. With a starting MSRP of $54,850, the M340i is a cost-effective option for those seeking a sporty yet practical sedan. Its spacious interior and comfortable ride make it ideal for daily driving.
The M3, with its 473-503 horsepower engine, is designed for those who prioritize performance above all else. Its track-ready features and superior handling make it a thrilling choice for enthusiasts. However, its stiffer suspension and higher starting price of $72,800 may limit its appeal for everyday use. While the M3 offers unparalleled driving dynamics, the M340i provides a more versatile and affordable alternative.
Design and Aesthetics: BMW M340i xDrive vs BMW M3
Exterior Styling and Features
The BMW M340i xDrive and BMW M3 showcase distinct design philosophies that cater to different audiences. The M340i xDrive embodies elegance with its sleek silhouette and subtle M Sport accents. Its traditional grille and understated stance reflect a focus on luxury and practicality. In contrast, the M3 adopts a bold and aggressive aesthetic. Its larger, controversial grille, flared wheel arches, and muscular stance emphasize its racing heritage and performance-driven identity.
Feature |
BMW M340i |
BMW M3 |
---|---|---|
Silhouette |
Sleek and aerodynamic |
Bold and aggressive |
Grille |
Prominent but traditional |
Controversial and larger |
Air Intakes |
Subtle M Sport accents |
Larger for enhanced performance |
Stance |
Understated |
Muscular and track-oriented |
Aerodynamics |
Standard aerodynamic design |
Sculpted for optimal downforce and stability |
Visual Elements |
Elegant design language |
Iconic features like quad exhaust and M-badge |
The M3’s exterior also incorporates functional elements like front splitters and rear diffusers, which enhance downforce and stability. These features, combined with its quad exhaust pipes and M-badge, create a visual identity that screams performance.
Interior Design and Technology
Inside, the M340i prioritizes comfort and usability. Its spacious cabin, plush seats, and refined materials make it ideal for daily driving. The latest iDrive infotainment system and high-resolution digital instrument cluster ensure a modern and connected experience. Meanwhile, the M3 focuses on sportiness. Heavily bolstered seats and M-specific pedals highlight its performance-oriented character. The M-specific instrument cluster provides precise data in SPORT and TRACK modes, including metrics like boost pressure and tire temperatures, enhancing the driving experience for enthusiasts.
Both models feature cutting-edge technology, but the M3 integrates additional track-focused features. These include advanced driving data displays and firmer suspension tuning, which cater to those who prioritize performance over comfort.
Build Quality and Materials
The craftsmanship of the M340i and M3 reflects their distinct purposes. The M340i, as an M Performance car, uses vernasca leather for its seats, which is durable but less luxurious. In contrast, the M3 features premium merino leather, offering a softer and smoother feel. This difference extends to the overall build quality. The M3’s materials and finishes emphasize its high-performance pedigree, while the M340i balances quality with cost-effectiveness.
The M3’s attention to detail, from its stainless steel pedals to its racing-inspired design elements, underscores its commitment to delivering a superior driving experience. The M340i, however, provides a more practical and affordable option without compromising on BMW’s signature luxury.
Pricing and Value: BMW M340i vs BMW M3
Base Price and Trim Options
When comparing the BMW M340i vs BMW M3, pricing plays a significant role in determining value. The M340i starts at $61,600, making it a more accessible option for those seeking a luxury sports sedan. In contrast, the base M3 begins at $76,000, reflecting its focus on high-performance engineering and exclusivity. This $14,400 price difference highlights the M3’s position as a track-ready vehicle designed for driving enthusiasts.
Model |
MSRP |
---|---|
BMW M340i |
$61,600 |
BMW M3 |
$76,000 |
Price Difference |
$14,400 |
The M340i offers a blend of luxury, technology, and performance at a lower price point. Meanwhile, the M3 justifies its higher cost with superior horsepower, advanced features, and a choice between a 6-speed manual or 8-speed automatic transmission. If you prioritize affordability and comfort, the M340i is an excellent choice. However, the M3 appeals to those who value ultimate performance and exclusivity.
Cost of Ownership and Maintenance
Ownership costs differ significantly between the M340i and M3. The M340i, as a more practical option, incurs lower maintenance expenses due to its less aggressive performance components. Its engine and suspension are designed for longevity and everyday use, reducing wear and tear. The M3, with its track-focused engineering, demands more frequent maintenance and higher-quality parts, increasing long-term costs.
Insurance premiums also tend to be higher for the M3 due to its classification as a high-performance vehicle. Additionally, the M3’s specialized features, such as the Active M Differential and adjustable suspension, require more expensive servicing. While the M340i offers a cost-effective ownership experience, the M3’s higher expenses align with its premium performance capabilities.
Fuel Economy and Daily Usability
Fuel efficiency is another area where the M340i outshines the M3. The M340i achieves an EPA-estimated 22 MPG in the city and 30 MPG on the highway, making it a more economical choice for daily driving. The M3, with its more powerful engine, delivers 17 MPG in the city and 24 MPG on the highway. This difference reflects the M3’s focus on performance over practicality.
Model |
Fuel Economy (City/Highway MPG) |
---|---|
BMW M340i |
22/30 |
BMW M3 |
17/24 |
The M340i also excels in daily usability. Its smoother ride, quieter cabin, and spacious interior make it ideal for commuting and family use. The M3, while thrilling to drive, sacrifices some comfort for its sportier suspension and aggressive design. If you need a car that balances performance with practicality, the M340i is the better option. However, if you prioritize driving excitement and can compromise on fuel economy and comfort, the M3 delivers an unmatched experience.
The BMW M340i and M3 cater to distinct audiences, each excelling in its own domain. Both share a 3.0L turbocharged inline-6 engine design, but the M3’s twin-turbo setup delivers significantly higher power and torque. The M340i prioritizes comfort and daily usability with plush seats and a smoother ride, while the M3 emphasizes sportiness with firmer suspension and bolstered seats. The M3’s manual transmission option and superior handling make it ideal for enthusiasts, whereas the M340i’s cost-effectiveness and practicality suit everyday drivers. If you seek thrilling performance, the M3 is unmatched. For a balanced, versatile sedan, the M340i is the better choice.
Share:
BMW M3 vs Audi RS4 Performance Battle in 2025
BMW M2 vs BMW M4 Performance and Features Breakdown