Last Updated on January 13, 2026 by Muhammad Binyameen
Introduction
The 2021 BMW M340i is a high-performance luxury sedan that combines power, style, and cutting-edge technology. Equipped with a 3.0L turbocharged inline-six engine, it produces 382 horsepower and 369 lb-ft of torque, accelerating from 0-60 mph in just 4.1 seconds. With a sleek design, a luxurious interior featuring leather upholstery, and advanced features like a 10.25-inch touchscreen, the 2021 BMW M340i provides an exhilarating yet comfortable driving experience, starting at around $54,000.
| Basics | Details |
| Engine | 3.0L turbo inline-six, 382 hp, 369 lb-ft torque |
| Transmission | 8-speed automatic |
| 0-60 mph | 4.1 seconds |
| Drive Type | RWD (AWD optional) |
| Fuel Economy | 23/32 mpg (RWD), 22/30 mpg (AWD) |
| Design | Aggressive grille, LED headlights, 18-inch wheels |
| Interior | Leather, panoramic sunroof, heated front seats |
| Infotainment | 10.25″ touchscreen, Apple CarPlay, Android Auto |
| Safety | Forward collision warning, lane-departure warning |
| Handling | Adaptive suspension, precise steering |
| Dimensions | Length: 189.1″, Width: 71.9″, Height: 56.4″ |
| Pricing | From $54,000 |
Engine and Performance
The 2021 BMW M340i is powered by a turbocharged 3.0-liter inline-six engine, delivering 382 horsepower and 369 lb-ft of torque. This engine enables impressive acceleration, reaching 0-60 mph in just 4.1 seconds. Paired with an eight-speed automatic transmission and rear-wheel drive (optional all-wheel drive), it offers responsive handling and high performance for an engaging driving experience on all terrains.
Design and Aesthetics
The 2021 BMW M340i features a bold, sporty design with a wide, aggressive front grille and sleek LED headlights. Its sculpted sides, coupled with available 18-inch wheels, give the car an athletic stance. The rear spoiler adds to its aerodynamic performance while maintaining a sophisticated look. With a variety of color options, the M340i stands out on the road.
Interior Features and Comfort
Inside the car, luxury meets comfort. The cabin features premium materials, including leather upholstery, soft-touch surfaces, and fine wood accents. The M340i offers ample seating space, with heated and power-adjustable front seats. The rear seats provide ample legroom, while a panoramic sunroof enhances the feeling of openness. The high-end design ensures a first-class experience for passengers.
Performance and Driving Dynamics of the 2021 BMW M340i
The 2021 BMW M340i stands out as a dynamic blend of everyday usability and high-performance capability, offering drivers a sport-oriented experience without compromising comfort. Powered by a turbocharged inline-six engine and equipped with BMW’s advanced xDrive all-wheel-drive system, the M340i delivers brisk acceleration and confident traction in a variety of driving conditions. Its suspension and chassis tuning are engineered to balance responsive handling with ride quality, making it well-suited for both spirited driving on twisty roads and composed cruising in daily traffic. With an emphasis on driver engagement and precision, the M340i represents a compelling choice for those seeking a performance-focused sedan that remains practical for routine use.
Technology and Infotainment
The car comes equipped with an advanced infotainment system featuring a 10.25-inch touchscreen and a 12.3-inch digital display. It includes Apple CarPlay, Android Auto, and BMW’s iDrive system for seamless connectivity. The Harman Kardon audio system offers crystal-clear sound.
Additionally, the M340i features navigation, wireless charging, and customizable settings to ensure an intuitive and connected driving experience.
Driving Dynamics: Handling, Ride Quality, and Performance
The 2021 BMW M340i delivers exceptional handling, offering precise steering and excellent grip thanks to its adaptive suspension. The car’s performance is enhanced by its 382-horsepower engine and sporty dynamics, making every corner a pleasure to navigate. The ride quality balances comfort with sporty agility, ensuring that whether in Comfort or Sport mode, the M340i performs effortlessly on any road.
Safety and Driver Assistance
Safety is a key feature in the BMW M340i, which includes a suite of driver assistance systems. Standard features include forward collision warning, automatic emergency braking, blind-spot monitoring, and lane-departure warning. Optional systems, such as adaptive cruise control and parking sensors, provide even more convenience and security, ensuring a safe driving experience for both the driver and passengers.
Fuel Economy
The 2021 BMW M340i strikes a balance between power and fuel efficiency. The rear-wheel-drive model achieves 23 mpg city and 32 mpg highway, while the all-wheel-drive version offers 22 mpg city and 30 mpg highway.
These figures allow the M340i to provide thrilling performance while maintaining reasonable fuel economy, making it an excellent option for those looking for both power and practicality in a luxury sedan.
Features and Specifications
The BMW M340i is packed with luxury features and advanced technology. Standard features include leather upholstery, a panoramic sunroof, a 12.3-inch digital display, and a Harman Kardon audio system.
The M340i also offers Apple CarPlay, Android Auto, and wireless charging, ensuring connectivity and convenience. Its 382-horsepower engine, paired with rear or all-wheel drive, provides an exhilarating driving experience.
Specifications Breakdown: Engine, Dimensions, and Performance Data
The 2021 BMW M340i boasts impressive specifications:
- Engine: 3.0L turbocharged inline-six, 382 horsepower
- Torque: 369 lb-ft
- Transmission: 8-speed automatic
- Acceleration: 0-60 mph in 4.1 seconds
- Fuel Economy: 23/32 mpg (RWD), 22/30 mpg (AWD)
- Dimensions: Length – 189.1 inches, Width – 71.9 inches, Height – 56.4 inches.
These figures highlight the M340i’s power, size, and efficiency, making it a top choice in the luxury sedan category.
Pricing and Value
Starting at around $54,000, the 2021 BMW M340i offers excellent value in the luxury sedan market. With 382 horsepower, advanced technology, and a luxurious interior, the M340i competes well against other high-end sedans. When you consider its powerful engine, sophisticated features, and overall performance, the M340i justifies the price, making it a smart investment for anyone seeking a premium driving experience.
Conclusion
The 2021 BMW M340i offers a perfect blend of luxury, performance, and advanced technology. With its powerful engine, sleek design, and premium features, it stands out in the luxury sedan market. Whether you’re looking for impressive acceleration or top-tier comfort, the M340i delivers on all fronts. Starting at around $54,000, the 2021 BMW M340i is a smart choice for those seeking a high-performance driving experience.
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FAQs
The BMW M340i features a 3.0L turbocharged inline-six engine. It produces 382 horsepower and 369 lb-ft of torque for excellent performance.
It accelerates from 0-60 mph in just 4.1 seconds. The M340i delivers impressive speed and responsiveness on the road.
The RWD model achieves 23 mpg city and 32 mpg highway. The AWD version provides 22 mpg city and 30 mpg highway.
Yes, it includes forward collision warning, lane-departure warning, and blind-spot monitoring. Optional features include adaptive cruise control and parking sensors.
The car starts at approximately $54,000. It offers luxury and performance for a competitive price.
