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The M340i, especially in the Touring body type, is one of our favourite BMWs. In a recent video, the sedan is highlighted to demonstrate its quickness in several acceleration tests. This is followed by a peak speed of up to 155 mph (250 km/h). You might not need the M3 after all, according to the M Performance 3 Series.
The in question vehicle is a 2023MY equipped with the Life Cycle Impulse-introduced iDrive 8. The sports sedan achieved a time of 4.4 seconds to go from 0 to 62 mph (100 km/h), matching the stated technical requirements. An earlier experiment using an M2 Competition had the same outcome. The M340i xDrive tested by the same driver was 0.8 seconds slower than an i4 M50. Meanwhile, it’s 1.4 seconds faster than a rear-wheel-drive 330i. It also outpaced a 545e xDrive Sedan by 0.2 seconds.
The sports sedan’s performance in the acceleration test goes much beyond the usual 0-62 mph benchmark, reaching 0-124 mph (0-200 km/h) in 15.7 seconds and the upper-speed limiter of 155 mph (250 km/h) in 32.4 seconds. It’s important to note that the M340i LCI now features a mild hybrid system for higher fuel efficiency, even though the combustion engine didn’t acquire any extra power. The newly added 48V starter generator has an additional 11 horsepower, while the inline-six B58 continues to operate with 382 horsepower and 500 Newton meters (369 pound-feet) of torque. The M340i now has mild hybrid technology, enabling engine-off coasting.
The LCI also makes it possible to purchase a carbon fibre roof previously exclusive to the M3 before the makeover. It is exclusively available on the sedan, like the top-of-the-line model. As the G20’s life cycle extended until roughly 2027, expect BMW to continue selling the M340i for many years.
