BMW M340i XDrive 2019 Review: 369 Hp, 4.4s Performance

The 2019 BMW M340i xDrive stands out as a pinnacle of engineering in the compact executive segment, delivering M-division thrills without the full M3 price tag. Powered by a refined 3.0-liter turbocharged inline-six engine producing 369 horsepower and 500 Nm of torque, this all-wheel-drive model accelerates from 0-62 mph in just 4.4 seconds, thanks to its quick-shifting eight-speed automatic transmission and intelligent xDrive system. It combines everyday comfort with track-ready poise, making it ideal for enthusiasts seeking a versatile grand tourer.

Engine and Powertrain Excellence

At the heart of the M340i xDrive lies BMW’s B58 3.0-liter twin-scroll turbocharged straight-six engine, an evolution of previous generations with significant upgrades. Output reaches 369 bhp from 5,500-6,500 rpm, with a broad torque plateau of 500 Nm available from 1,850-5,000 rpm, enabling effortless overtaking and surge on demand. Reviewers note its seamless power delivery, where boost builds instantly without lag, propelling the car forward with relentless force.

The eight-speed ZF automatic transmission is a standout, offering smooth shifts in Comfort mode for relaxed cruising and lightning-quick changes in Sport settings. Paddle shifters provide manual control, enhancing driver engagement during spirited drives. Paired with xDrive, which features a rear-biased torque split (up to 100% to the rear), it delivers planted traction off the line and through corners, minimizing wheelspin even on damp roads.

Chassis Dynamics and Handling Prowess

The M340i xDrive inherits the seventh-generation 3 Series’ acclaimed chassis, built on the lighter, stiffer CLAR platform that sheds about 120 pounds compared to its predecessor. Standard adaptive M Sport suspension lowers the ride height by 10 mm, with electronically controlled dampers offering Comfort, Sport, and Sport+ modes. In Comfort, it absorbs imperfections smoothly for long-distance touring; in Sport, it firms up for sharper responses without excessive harshness.

Key hardware includes an M Sport electro-mechanical limited-slip differential, variable-ratio steering, and 19-inch wheels with performance tires (summer on RWD, all-season on xDrive). This setup yields unshakeable grip and flat cornering, with the car rotating precisely under throttle before settling confidently at the limit. On twisty roads, it feels rear-drive biased despite AWD, powering out of bends with poise. Brakes are robust M Sport units, halting the car decisively, though pedal feel can be sensitive in traffic.

• Strengths: Exceptional stability at high speeds, confidence-inspiring turn-in.
• Considerations: Steering lacks tactile feedback; firmer ride in Sport+ may fatigue on poor surfaces.

Interior Refinement and Technology

Step inside the M340i xDrive, and you’re greeted by a premium cabin rivaling luxury competitors. Sumptuously trimmed sports seats provide excellent support for long hauls, with thick, multi-contoured bolsters and ventilation options. The leather-wrapped, button-laden steering wheel feels upscale, though its girth may not suit smaller hands.

The iDrive 7.0 infotainment system dominates via a 12.3-inch digital cluster and 10.25-inch touchscreen, supporting wireless Apple CarPlay and navigation. Ambient lighting, Harman Kardon audio, and a head-up display elevate the experience. Rear space accommodates adults comfortably, with a 480-liter trunk for practicality. Build quality is impeccable, outshining Audi A4 and Mercedes C-Class in materials and ergonomics.

Driving Experience: From Street to Track

This sedan excels as a ‘Q-car’ – unassuming yet devastatingly quick. In urban settings, it’s calm and efficient; on highways, it devours miles with effortless pace. Track testing reveals its composure: at circuits like Algarve International, it maintains neutral balance through high-speed sweeps, rewarding precise inputs. The artificial engine note via speakers is polarizing, but the mechanical smoothness and surge are addictive.

Compared to the prior 340i, it’s 0.5 seconds quicker to 62 mph, encroaching on outgoing M3 territory while offering better usability. It’s more grand tourer than razor-sharp track weapon, prioritizing speed and comfort over raw aggression.

Rivals and Value Proposition

Priced around $99,900 plus on-roads (2019), the M340i undercuts the M3 while matching much of its performance. Key rivals:

It edges rivals in powertrain refinement and chassis balance, though some prefer the Giulia’s raw feel.

Safety and Efficiency Features

Standard safety includes forward collision warning, lane-keeping assist, and adaptive cruise. Euro NCAP awarded the 3 Series five stars. Fuel economy impresses at 35 mpg highway in mixed driving, balancing performance with sensibility.

Pros and Cons

• Pros: Explosive acceleration, superb grip, luxurious interior, versatile dynamics.
• Cons: Bland steering feel, firm ride in sport modes, synthetic exhaust note.

Frequently Asked Questions (FAQs)

Is the M340i xDrive faster than the previous 340i?

Yes, it shaves 0.5 seconds off the 0-62 mph time, hitting 4.4 seconds.

Does it come with rear-wheel drive?

No, xDrive AWD is standard; no RWD option in this model.

How does the suspension handle daily driving?

Adaptive dampers excel in Comfort mode for compliance, firming up in Sport.

What’s the fuel economy like?

Real-world averages 28-35 mpg, strong for its power.

Is it a true M car alternative?

It offers 90% of M3 performance at lower cost and greater usability.

Final Verdict

The 2019 BMW M340i xDrive is a benchmark sports sedan: thrilling, refined, and practical. It masterfully blends speed, luxury, and poise, earning top marks for enthusiasts.