Table of Contents
Introduction
The 2021 BMW M340 is an impressive addition to the luxury sports sedan segment, blending exhilarating performance with sophisticated design and advanced technology. This review provides a comprehensive breakdown of the M340, covering its performance capabilities, interior features, specifications, and what makes it a standout choice in its class.
The BMW M340 represents the perfect intersection of luxury and performance. As a member of the 3 Series family, it inherits BMW’s decades-long lineage of excellence. Focusing on driving dynamics, comfort, and usability, the M340 is engineered to satisfy both enthusiasts and everyday drivers.
Feature | Specification |
Engine | 3.0-liter inline-six |
Horsepower | 382 hp |
Torque | 369 lb-ft |
Transmission | 8-speed automatic |
0-60 mph | 4.2 seconds |
Top Speed | 155 mph (electronically limited) |
Drivetrain | xDrive (AWD) |
Fuel Economy (City) | 22 mpg |
Fuel Economy (Highway) | 30 mpg |
Fuel Tank Capacity | 15.6 gallons |
Cargo Space | 17 cubic feet |
Seating Capacity | 5 |
Infotainment System | iDrive 7.0 with 10.25-inch display |
Audio System | Optional Harman Kardon |
Safety Features | Forward Collision Warning, Blind Spot Monitoring, Lane Departure Warning |
Starting Price | Approximately $54,000 |
2021 BMW M340 Performance
Engine and Powertrain
At the heart of the 2021 BMW M340 lies a robust 3.0-liter inline-six engine equipped with BMW’s TwinPower Turbo technology. This powertrain delivers an exhilarating 382 horsepower and 369 lb-ft of torque, providing ample power for spirited driving. The M340 is paired with an 8-speed automatic transmission that ensures smooth and responsive gear shifts, enhancing the overall driving experience.
The M340’s acceleration capabilities are noteworthy. It can sprint from 0 to 60 mph in just 4.2 seconds, an impressive figure that positions it as one of the quickest sedans in its class. This showcasing its sporty character and performance-oriented design.

Handling and Ride Quality
One of the M340’s defining features is its handling. The vehicle comes standard with BMW’s xDrive all-wheel-drive system, which optimizes traction and stability under various driving conditions. This system enhances the sedan’s cornering capabilities, providing confidence whether navigating sharp turns or straight highways.
The M340 also has an adaptive M suspension that adjusts to the road conditions and driving style. This feature allows drivers to experience a comfortable ride during daily commutes while retaining the sporty feel that enthusiasts crave. The precise steering and well-tuned chassis create an engaging and enjoyable driving experience.
Interior
Design and Materials
Step inside the 2021 BMW M340, and a luxurious and meticulously crafted interior will greet you. High-quality materials, including leather upholstery and soft-touch surfaces, create an inviting and premium atmosphere. The driver-centric layout ensures that controls and displays are easily accessible, enhancing the cabin’s overall usability.
The interior design strikes a balance between modern aesthetics and functionality. Optional features such as carbon fibre trim and ambient lighting further elevate the cabin’s ambience, providing a sophisticated environment for both drivers and passengers.

Technology
The M340 is equipped with BMW’s iDrive 7.0 infotainment system, which boasts a 10.25-inch touchscreen display. This intuitive system offers a range of connectivity options, including Apple CarPlay and Android Auto, allowing seamless integration with smartphones. Voice recognition and gesture controls enhance usability, making navigating menus and adjusting settings easier without distraction.
The M340 offers an optional Harman Kardon premium audio system for audiophiles that delivers rich, immersive sound quality. The system is designed to enhance the driving experience, whether listening to music or podcasts or navigating through GPS.
Space and Comfort
The M340 is designed to comfortably accommodate both drivers and passengers. With spacious seating for up to five adults, the sedan provides ample legroom and headroom, making it suitable for long journeys or daily commutes. The rear seats are remarkably generous, ensuring passengers can relax during extended trips.
Cargo space is another strong point for the M340, with 17 cubic feet available in the trunk. This capacity is ideal for carrying luggage, sports equipment, or groceries, making the M340 a practical choice for those who require versatility in their vehicle.

Specifications
Here’s a detailed table summarizing the key specifications of the 2021 BMW M340:
Feature | Specification |
Engine | 3.0-liter inline-six |
Horsepower | 382 hp |
Torque | 369 lb-ft |
Transmission | 8-speed automatic |
0-60 mph | 4.2 seconds |
Top Speed | 155 mph (electronically limited) |
Drivetrain | xDrive (AWD) |
Fuel Economy (City) | 22 mpg |
Fuel Economy (Highway) | 30 mpg |
Fuel Tank Capacity | 15.6 gallons |
Cargo Space | 17 cubic feet |
Seating Capacity | 5 |
Why It Stands Out
The 2021 BMW M340 differentiates itself from competitors in several key areas:
Performance and Handling
The M340’s powerful engine and refined chassis provide a driving experience that rivals many sports cars. The combination of all-wheel drive and adaptive suspension allows it to handle various road conditions while maintaining a comfortable ride.
Luxury and Technology
Inside, the M340 offers a blend of luxury materials and cutting-edge technology. The intuitive infotainment system and high-quality audio options enhance the overall driving experience. Drivers will appreciate the thoughtful design and user-friendly interface.

Practicality
Unlike some rivals, which prioritize performance at the expense of comfort, the M340 provides a spacious interior and significant cargo capacity. This practicality makes it an excellent choice for families or individuals who need a versatile vehicle.
Safety Features
Safety is a priority for BMW, and the M340 has various advanced safety features. Standard equipment includes:
- Forward Collision Warning: Alerts the driver of potential collisions.
- Automatic Emergency Braking: Engages brakes to prevent or mitigate accidents.
- Blind Spot Monitoring: Provides alerts when vehicles are in the driver’s blind spot.
- Lane Departure Warning: Warns the driver if the vehicle unintentionally drifts out of its lane.
Optional safety upgrades include adaptive cruise control and parking assistance, enhancing the vehicle’s safety profile.
Read More: – 2022 Nissan Sentra: An In-Depth Analysis of Its Specification, Performance
Driving Experience
The driving experience in the M340 is genuinely exceptional. The engine delivers power smoothly, and the transmission responds quickly to driver inputs. Whether accelerating on the highway or navigating city streets, the M340 feels agile and composed.
The adaptive suspension system allows the driver to choose between different modes, ranging from comfort to sport. This versatility ensures that the M340 can cater to different driving preferences, making it suitable for relaxed cruising and spirited driving.

Competitor Comparison Snapshot
Feature | BMW M340i | Audi S4 | Mercedes-AMG C43 | Genesis G70 3.3T |
Horsepower | 382 hp | 349 hp | 385 hp | 365 hp |
0-60 mph | 4.1 seconds | 4.4 seconds | 4.5 seconds | 4.5 seconds |
Infotainment | iDrive 7.0 | MMI | MBUX | Genesis AVN |
Price (starting) | $54,700 | $52,000 | $60,000 | $51,500 |
AWD Option | Yes (xDrive) | Standard | Standard | Standard |
Conclusion
The 2021 BMW M340 is a remarkable luxury sports sedan that excels in performance, comfort, and technology. Its powerful engine, refined handling, and spacious interior stand out in a competitive market. Whether you’re an enthusiast seeking thrills or an everyday driver looking for comfort and practicality, the M340 delivers an exceptional driving experience.
Combining BMW’s storied heritage with modern advancements, the M340 is a solid choice for those who desire a luxury sedan that does it all. It’s a vehicle that not only meets the demands of daily life but also provides the excitement that comes from driving a genuine BMW.
Apart from that if you want to know about “2006 Jeep Grand Cherokee: A Comprehensive Guide to Performance, Design, Features, and Long-Term Reliability” then please visit our “Automobile” Category.
FAQs
The M340 comfortably seats up to five passengers and offers generous legroom, headroom, and 17 cubic feet of trunk space.
The M340 includes the iDrive 7.0 infotainment system, which has a 10.25-inch touchscreen, Apple CarPlay, Android Auto, and an optional Harman Kardon audio system.
Yes, the 2021 BMW M340 features BMW’s xDrive all-wheel-drive system, enhancing traction and stability.
The M340 achieves an estimated fuel economy of 22 mpg in the city and 30 mpg on the highway.