Read This Before Buying a BMW 340i: A Comprehensive Review of the 2023 Model

If it ain’t broke, don’t fix it – a philosophy BMW has followed for years. However, the 2023 BMW M340i Facelift stands as an exception to that rule. With mild design upgrades and remarkable performance, this redesigned M-lite 3 Series has captured the attention of car enthusiasts worldwide. In this article, we delve into the exterior and interior changes, examine the powerful B58 engine, and provide an overview of the driving experience. Read on to discover everything you need to know before buying the 2023 BMW 340i.

Small, Yet Meaningful Upgrades on the Outside:

BMW’s G20 3 Series has maintained a simple and sporty design amidst the brand’s evolving aesthetic. The model’s facelift retains beloved elements while incorporating subtle enhancements. The kidney grille features slightly thicker outer edges, resembling a shark’s nose. The headlights have slimmed down and now bear a resemblance to the 5 Series. The larger air intake and honeycomb pattern give the M340i a sportier appearance. While the taillights remain the same, the rear bumper and diffuser have been updated. The quad exhaust pipes seen on other M Performance models are absent, but the trapezoidal standard exhaust provides a traditional touch.

Significant Changes Inside the Cabin:

While the exterior changes are conservative, the cabin receives more noticeable updates. The iDrive 7 system has been replaced with a large, curved display powered by iDrive 8. The gear shifter has transitioned to the toggle switch found in the BMW iX. Additionally, the dash trim has been redesigned to exude a more premium feel. Though some may miss the physical AC buttons, the interior updates align with BMW’s latest standards.

Boost Power:

The BMW M340i Sedan, known for its popularity, has received a small change that makes a big impact. The 2023 model now features mild-hybrid technology, providing a temporary 11 horsepower boost. The 3.0-liter inline-six B58 engine generates 374 horsepower (382 hp in the United States) and 500 Newton-meters (369 pound-feet) of torque. The sedan achieves impressive performance, reaching 0 to 62 mph (100 km/h) in 4.1 seconds. The addition of the mild-hybrid system reduces fuel consumption and minimizes turbo latency.

Driving Experience:

Taking the M340i for a spin reveals its true capabilities. The M Adaptive Suspension offers various driving modes, including Comfort, ECO, Sport, Sport Plus, and Adaptive. In Comfort mode, the ride is slightly bouncy, suitable for daily driving. Switching to Adaptive mode delivers a more level and smooth ride. Sport Plus mode truly unleashes the M340i’s potential, featuring stiffer suspension, sharper steering, and aggressive throttle and transmission responses. The rear limited slip differential and xDrive system enhance cornering performance, while the ZF 8-speed transmission ensures precise gear changes. The 48-volt mild-hybrid system may not be immediately noticeable but proves advantageous in tight overtaking situations.


The 2023 BMW M340i remains a standout among the brand’s offerings, showcasing a perfected recipe of performance and design. Whether you opt for the rear-wheel drive or xDrive variant, you’ll be delighted with its premium quality and sporty characteristics. With an MSRP of $56,850 plus destination and handling, the M340i is worth considering for those seeking an exceptional driving experience.