The F30 BMW, particularly the 340i, remains a popular choice for driving enthusiasts. However, with the introduction of the G20 generation, it’s worth examining the key differences and improvements. This review compares a 2016 F30 340xi and a G20 M340xi, focusing on critical aspects like engine performance, transmission, suspension, and technology.
Engine Performance: B58 Evolution
Both the F30 340i and G20 M340i utilize BMW’s renowned B58 engine. While the F30’s B58 was already a strong performer, the G20’s iteration boasts noticeable power enhancements. The power delivery in the G20 feels more immediate and engaging. Additionally, the auto start/stop function in the G20 is smoother and less intrusive.
Transmission Refinements
The G20’s transmission builds upon the solid foundation of the F30’s gearbox. Shifting is smoother, and the shift points are optimized for better performance and efficiency across all driving modes. These improvements enhance the overall driving experience, making the G20 feel more responsive.
Suspension: A Noticeable Upgrade
The suspension is where the G20 truly shines, especially when comparing xDrive models with stock run-flat tires. The G20’s ride is significantly smoother, even when comparing 18″ run-flats on the F30 to 19″ on the G20. The G20’s M Sport suspension contributes to more refined handling and improved cornering capabilities compared to the standard suspension on the F30 xDrive.
All-Wheel Drive (AWD) Enhancements
The G20’s xDrive system offers more control over the power distribution, allowing for a more rear-wheel-drive biased experience with Sport Traction and Traction control off. The addition of a standard limited-slip differential (LSD) on the M340i further enhances the driving dynamics, making it more engaging than its F30 predecessor.
Exhaust Note: Refined Aggression
The G20 M340i’s exhaust note is more refined and aggressive than the F30 340i. The M Performance Exhaust (MPE) on the G20 delivers a louder, yet more sophisticated sound. The valve control system in the G20 is also more predictable, allowing for a quieter ride in Comfort mode and a more pronounced sound in Sport mode.
Interior and Technology: A Modern Leap
The G20’s interior boasts a significant upgrade in materials and design. The new leather surpasses the F30’s Dakota leather in quality, and the overall cabin feels more modern and luxurious. The iDrive 7 system in the G20 is a major step forward in technology, offering features like self-driving assistance, remote start, and a more intuitive user interface. These features make the F30’s technology feel dated in comparison.
Conclusion: G20 – A Worthy Successor
The G20 M340xi represents a significant evolution from the F30 340xi. With improvements in engine performance, transmission, suspension, handling, exhaust note, interior quality, and technology, the G20 offers a more refined and engaging driving experience. While the F30 remains a capable and enjoyable car, the G20 builds upon its strengths and elevates the driving experience to a new level. The G20 is a compelling option for those seeking a modern and performance-oriented sports sedan.
