BMW M240i Convertible: Expert Review And Practical Insights

The BMW M240i Convertible stands out as a versatile drop-top that combines high-performance thrills with surprising everyday usability. Over an extended period of testing, this model revealed its strengths in delivering smooth power, refined ride quality, and engaging dynamics, making it ideal for both weekend blasts and routine commutes.

Engine Power and Performance Highlights

At the heart of the M240i Convertible lies a potent 3.0-liter twin-turbocharged inline-six engine, producing 340 horsepower and 369 lb-ft of torque. This B58 powerplant delivers seamless acceleration, propelling the car from 0-62 mph in just 4.7 seconds with the eight-speed automatic transmission.

Peak torque arrives early at around 1,520 rpm, ensuring responsive performance from low speeds, whether merging onto highways or navigating twisty roads. Reviewers note the engine’s smooth power delivery, with a raspy edge above 5,500 rpm that builds eagerly to the 7,000 rpm redline.

• 0-62 mph: 4.7 seconds (automatic)
• Top speed: Electronically limited to 155 mph
• Torque spread: Available from low revs for effortless overtaking

The optional eight-speed Sport automatic shifts rapidly, often quicker than a manual, aided by paddle shifters and throttle blips on downshifts for enhanced smoothness.

Transmission Choices and Driving Engagement

Buyers can opt for a precise six-speed manual or the eight-speed automatic. The manual offers tactile involvement with a light clutch and fluid gear changes, ideal for enthusiasts. However, the automatic proves more efficient and slightly faster, achieving 38.2 mpg combined while emitting 169 g/km CO2—improvements over the manual’s figures.

In real-world driving, the wide gear ratio spread allows multiple seamless downshifts, maintaining momentum through corners. Adaptive modes adjust throttle response, steering weight, and suspension firmness, transforming the car’s character from compliant cruiser to sharp handler.

Handling and Suspension Dynamics

Equipped with Adaptive M Suspension, the M240i Convertible balances sportiness and comfort effectively. In Comfort mode, it absorbs road imperfections smoothly, rivaling luxury coupes, while Sport mode sharpens responses for enthusiastic driving.

M Sport brakes provide strong stopping power with progressive feel, using four-piston fronts and two-piston rears. The chassis exhibits neutral balance, encouraging confident cornering without excessive tail-happiness, though it prefers flowing roads over track days.

Variable Sport Steering offers precise feedback, enhancing mid-corner adjustability. Despite the convertible’s 1,690 kg weight—145 kg more than the coupe—it feels agile, tucking neatly into tight spaces.

Daily Comfort and Ride Quality

Long-term ownership highlights the M240i’s refinement. The suspension morphs from plush to planted, shielding occupants from bumps during urban runs. Heated sport seats and an optional heated M steering wheel add winter appeal, while the fabric roof operates quickly for impromptu open-air drives.

Wind buffeting with the top down remains minimal at highway speeds, making it a superb countryside cruiser. The engine’s characterful growl, augmented subtly through speakers, enhances the experience without overwhelming.

Interior Space and Practicality

The cabin impresses with high build quality and user-friendly tech, including navigation, rear-view camera, and advanced real-time traffic info. Front seats offer ample support, but rear space suits occasional use for smaller passengers.

Boot capacity shrinks with the roof up but suffices for weekend luggage. Practicality shines in city parking due to compact dimensions, outperforming wider rivals like the M2.

• Well-built materials and intuitive controls
• Decent tech suite for connectivity
• Limited rear legroom but functional for two

Fuel Efficiency and Running Costs

Expectations of thirst were defied, with real-world averages approaching official 38.2 mpg figures during mixed driving. Features like auto stop-start and brake regeneration contribute to efficiency, proving the M240i relatively frugal for its performance.

Pricing starts around £42,000 fully optioned, competitive against peers. Ownership appeals to those valuing engagement without full M-car extremes.

Long-Term Reliability and Ownership Insights

Over months, the M240i proved dependable, with its engine earning praise for smoothness and power delivery. Minor niggles aside, it excelled in varied conditions, from urban traffic to long tours.

Optional M Performance exhaust amplifies the soundtrack with pops and crackles, elevating enjoyment. All-wheel-drive variants add traction in wet weather, maintaining balance.

Comparing to Rivals

Against the Porsche 718 Boxster or Audi TT Roadster, the M240i offers superior straight-line speed and value, though it trades some agility for usability. It’s less hardcore than the M2 but more livable daily.

FAQ

Is the BMW M240i Convertible fuel-efficient?

Yes, it achieves up to 38.2 mpg combined with the automatic, better than many sports cars.

How quick is the M240i Convertible?

0-62 mph in 4.7 seconds automatic, 4.9 manual.

What’s the boot space like?

Adequate for daily needs, though reduced with roof up.

Is it comfortable for long drives?

Adaptive suspension ensures a refined ride in Comfort mode.

Manual or automatic better?

Automatic for efficiency and speed; manual for fun.