BMW 640d Gran Coupe: Expert Review And Used Value

The BMW 640d Gran Coupe stands out as a unique offering in the luxury car market, merging the sleek lines of a coupe with the practicality of a four-door sedan. Powered by a refined 3.0-liter twin-turbo diesel engine, it delivers exceptional performance while maintaining impressive fuel economy, making it a compelling choice for enthusiasts seeking grand touring excellence.

Design and Exterior Appeal

From the moment you approach the BMW 640d Gran Coupe, its bold styling commands attention. The elongated hood, fastback roofline, and frameless doors create a dramatic silhouette that differentiates it from traditional sedans. BMW crafted this model on the 6 Series platform, elevating it above the 5 Series in visual drama and sporty character, directly challenging rivals like the Porsche Panamera.

The front features aggressive kidney grilles and slim LED headlights, giving it a predatory stance. Air intakes along the sides enhance aerodynamics and cooling for the potent diesel powerplant. At the rear, slim taillights and a subtle diffuser emphasize its performance credentials. Available in M Sport trim, it gains even sharper lines with aerodynamic enhancements and larger alloy wheels, typically 19 or 20 inches, wrapped in low-profile tires for a planted road presence.

• Sleek fastback profile for coupe-like aesthetics in a practical package.
• Adaptive LED headlights standard, improving nighttime visibility.
• Optional panoramic sunroof floods the cabin with natural light.

Wheelbase measures around 3 meters, balancing stability at high speeds with agile handling. Overall length exceeds 5 meters, providing ample presence without feeling cumbersome in urban settings.

Interior Luxury and Space

Step inside, and the cabin exudes premium quality with high-grade leather upholstery, soft-touch surfaces, and metallic accents. The driver-focused cockpit features a low-set seating position, sportier than the 5 Series, with supportive seats offering multi-way adjustments, heating, and memory functions as standard.

The dashboard houses a large central display, often paired with BMW’s iDrive system for intuitive navigation, infotainment, and vehicle settings. Analog gauges provide clear readouts, complemented by a heads-up display in higher specs. Rear passengers enjoy generous legroom and headroom for two adults, though the high transmission tunnel limits the center seat to occasional use, making it effectively a 4+1 configuration.

Boot space totals 460 liters, expandable by folding the rear seats, suitable for weekend luggage or golf bags. Optional features like surround-view cameras and ceramic controls elevate the experience further.

Engine Performance and Drivetrain

At the heart lies the N57 3.0-liter inline-six twin-turbo diesel, producing 313 horsepower and 465 lb-ft of torque from low revs. Paired with an eight-speed ZF automatic transmission, it propels the car from 0-62mph in 5.4 seconds, matching petrol counterparts while topping 155mph electronically limited.

Fuel efficiency shines at 49.6mpg official combined (WLTP predecessor), with real-world figures around 35-40mpg on mixed routes. CO2 emissions sit at 149g/km, aiding tax efficiency. The diesel’s smoothness belies its nature, offering a refined growl in Sport mode and effortless cruising.

• Twin-turbo setup delivers instant low-end torque for overtaking.
• 8-speed auto shifts seamlessly, with paddle shifters for manual control.
• Rear-wheel drive enhances dynamic engagement (xDrive optional).

Owners praise its tractability on motorways, where cruise control maintains speeds effortlessly.

Driving Dynamics and Handling

Despite its size, the 640d Gran Coupe handles with poise. The chassis tuning prioritizes grand touring comfort with a sporty edge, featuring adaptive dampers in M Sport models. Steering is precise and weighted ideally, providing feedback without being overly heavy.

Brakes offer strong stopping power with progressive feel, essential for a 1,800kg kerb weight. On twisty roads, it corners flat with minimal body roll, though firmer suspension sacrifices some compliance over rough surfaces.

The combination of power and chassis balance makes it feel more engaging than typical luxury sedans.

Run-flat tires contribute to ride firmness, but noise insulation keeps the cabin serene at highway speeds.

Technology and Safety Features

B Loaded with tech, including lane departure warning, blind-spot monitoring, and forward collision alert. The Professional navigation system integrates traffic data, while Harman Kardon audio delivers immersive sound. Connectivity supports Apple CarPlay and Bluetooth seamlessly.

Rivals and Pricing Context

Priced from around £68,000 new (2012 era), fully loaded examples hit £85,000. Today, used models under £20,000 offer value against Mercedes CLS350d or Audi A7 3.0 TDI.

Reliability and Ownership

Owners report strong dependability with regular servicing. Common needs include turbo upkeep and diesel particulate filter maintenance. Real-world MPG exceeds 40mpg highway, with comfortable long-distance runs.

Pros and Cons

• Pros: Stunning looks, potent diesel, refined ride, tech-rich interior.
• Cons: Firm suspension, high rear costs, limited rear center space.

Frequently Asked Questions (FAQs)

Is the BMW 640d Gran Coupe reliable?

Yes, with proper maintenance; focus on diesel-specific services.

How fuel-efficient is it?

Official 49.6mpg, real-world 35-45mpg.

Can it seat five comfortably?

Best for four; center rear is cramped.

What’s the top speed?

155mph limited.

Is it worth buying used?

Excellent value under £20k for performance and style.