BMW 730D Complete Review: Diesel Luxury And Efficiency

The BMW 730d stands out as a masterful fusion of opulent comfort, efficient power delivery, and engaging road manners in the competitive luxury sedan segment. Powered by a refined 3.0-liter straight-six turbodiesel engine, this flagship model from BMW’s 7 Series lineup delivers impressive performance figures while maintaining whisper-quiet operation and class-leading fuel economy.

Powertrain Excellence: A Diesel Masterpiece

At the heart of the BMW 730d lies its 3.0-liter inline-six turbodiesel engine, producing around 242-261 horsepower and substantial torque outputs exceeding 450 lb ft from as low as 2,000 rpm. This setup propels the hefty sedan from 0-62 mph in approximately 6.1 to 7.0 seconds, with a top speed electronically limited to 155 mph. Reviewers consistently praise the engine’s smoothness, noting it rivals petrol units in refinement, with minimal diesel clatter even at idle.

Paired exclusively with an eight-speed Steptronic automatic transmission, the powertrain shifts seamlessly, offering perfectly spaced ratios for effortless overtaking and highway cruising. The gearbox’s intelligence ensures the engine operates in its sweet spot, whether accelerating briskly or maintaining steady speeds. Fuel efficiency is a highlight, with combined figures approaching 60 mpg in official tests for short-wheelbase models, translating to real-world averages of 40-45 mpg on long journeys. This makes the 730d a pragmatic choice for high-mileage executives prioritizing running costs without sacrificing luxury.

This table illustrates the 730d’s edge in efficiency and low-end pull compared to typical rivals.

Chassis Dynamics: Comfort Meets Control

Despite its imposing size and weight—around 1,900 kg—the BMW 730d retains BMW’s signature driver focus. The suspension, often enhanced with adaptive air springs, absorbs bumps with poise while delivering precise handling on twisty roads. Testers note the car’s ability to shrink around the driver during spirited runs, with sharp steering feedback and minimal body roll.

In comfort mode, the ride rivals the Mercedes S-Class, gliding over imperfections silently. Sport settings sharpen throttle response and firm up damping for more engaging dynamics, proving the 730d isn’t just a limo but a capable grand tourer. Rear-wheel-drive models excel in balance, though xDrive variants add all-weather traction with minimal penalty to agility. Braking is strong and progressive, instilling confidence in varied conditions.

• Exceptional bump absorption for long-distance travel
• Direct steering with good road feel
• Stable high-speed composure
• Optional integral active steering for enhanced maneuverability

Interior Refinement: A Sanctuary of Sophistication

Step inside the 730d, and you’re enveloped in premium materials: supple leather, real wood veneers, and metallic accents create an ambiance of understated elegance. The cabin is exceptionally quiet, with excellent soundproofing muting road and wind noise effectively. Seating is a standout, with multi-contour front chairs offering heating, ventilation, and massage functions; rear benches in long-wheelbase versions recline generously.

Space is ample upfront, though short-wheelbase rear legroom trails some rivals. Boot capacity suits family needs but isn’t class-leading. Ambient lighting and a panoramic sunroof enhance the mood, while run-flat tires contribute to a compliant ride without harshness.

Technology Integration: Futuristic Yet Intuitive

BMW’s iDrive system anchors the tech suite, with a high-resolution display, rotary controller, gesture recognition, and voice commands for seamless operation. Features like head-up display, adaptive cruise control, and night vision elevate safety and convenience. Rear-seat entertainment options, including tablets and deployable screens, cater to passengers.

While some gimmicks like gesture control feel superfluous, core systems are reliable and user-friendly. Connectivity includes Bluetooth, Apple CarPlay, and robust navigation, ensuring the 730d remains future-proof.

Design and Presence: Subtle Authority

Exterior styling emphasizes presence over flashiness, with a long hood, bold kidney grilles, and sleek LED headlights. Adaptive lighting and matrix LEDs provide superior visibility. The silhouette balances sportiness and gravitas, turning heads without ostentation. Wheel options up to 20 inches add poise, complementing the athletic stance.

Ownership Considerations: Value and Practicality

Priced competitively in the luxury segment, the 730d offers strong residuals and low running costs thanks to its efficient diesel. Maintenance follows BMW’s schedule, with diesel reliability proven in high-mileage scenarios. Optional packs like Executive or Luxury elevate spec without excess.

Drawbacks include pricey extras and slightly numb steering in some setups, but overall, it excels as a daily driver or chauffeured conveyance.

Market Positioning: Why Choose the 730d?

In a field dominated by petrol hybrids and EVs, the 730d’s diesel prowess shines for those valuing torque, economy, and refinement. It outpaces many in driver involvement while matching comfort leaders. Used models around £6,000 deliver flagship luxury at bargain prices.

Frequently Asked Questions (FAQs)

Is the BMW 730d fuel-efficient?

Yes, achieving up to 60 mpg combined, with real-world figures of 40-45 mpg.

How does it compare to the Mercedes S-Class?

The 730d offers similar comfort but superior handling dynamics.

What’s the boot space like?

Adequate for luggage, around 500 liters, though not the largest.

Is xDrive available?

Yes, enhancing traction with negligible performance loss.

Suitable for long trips?

Absolutely, with supreme comfort and range exceeding 700 miles.