High-performance cars and dual-motor electric vehicles attract younger enthusiasts who love powerful cars. But true value comes from combining everyday usability, performance, technology, and a driving feel that's difficult to imitate. That's where the M340i outperforms its competitors. For journalists who have test-driven it, including myself, this BMW is highly recommended for driving enthusiasts or anyone seeking a well-rounded BMW without paying the premium price of a full M model.
What exactly is the BMW M340i xDrive LCI?
It is the sedan powerhouse from the brand with the propeller badge, accelerating from 0 to 100 kilometers per hour nearly as fast as a genuine M Car—so close that even the Porsche 718 Cayman can't outrun it. The M340i has all-wheel drive, produces 387 horsepower, and trails the M3 Competition with 503 horsepower by just 0.3 seconds. It also clocks a quarter-mile time of 12.3 seconds, making it the fastest 3 Series model aside from the M3 G80. These figures reflect meticulous tuning and a determination to outperform AMG models in the 43 and 53 series, as well as Audi's S lineup. The G20 LCI's engine and chassis make the M340i unique amid intense competition in the luxury German sports sedan segment.
The 3.0-liter inline six-cylinder turbocharged engine delivers 387 horsepower and 500 Newton-meters (369 lb-ft) of torque, producing an exhaust note as harmonious as a rock band when you press the accelerator. Its engine sounds as sweet as a V-type engine, with explosive bursts sent through the tailpipe when you lift off the throttle, and a sharp "pop" when the ZF transmission shifts to a higher gear. BMW's B58 engine in the M340i responds aggressively and firmly to the driver's right foot in every gear and RPM range, delivering strong thrust followed by steady acceleration. The concept of "shifting to any gear balanced to the engine speed at that moment" is theoretical unless you switch the ZF 8-speed automatic to manual mode by pulling the small gear lever backward once. This is an excellent 8-speed all-wheel-drive transmission with sharp, swift shifts timed perfectly. However, the traditional gear lever has been replaced in the LCI update, now more compact and recessed within the gear console.
Real-world performance reflects the G20 M340i's excellent capabilities in every aspect. The B58 inline six-cylinder petrol engine remains one of BMW's best current engines, delivering smooth and continuous torque when paired with the ZF 8-speed transmission and xDrive all-wheel-drive system. In fact, the M340i has more power than needed for city driving, using only 30-40% of its total output. The G20 chassis accommodates the relatively large six-cylinder engine perfectly, balancing comfort and sharp dynamic confidence. The xDrive system ensures confident grip on winding roads and cross-country highways. The interior features modern technology and comprehensive safety systems.
Many M340i owners consider this model the most suitable BMW for everyday use in 2025. If budget isn't an issue, this car is a straightforward choice. For those wanting to experience BMW's unique performance without sacrificing comfort or paying excessively, the M340i is the best BMW answer from the past year.