2017 Bentley Mulsanne Speed: Full Review And Specs

The 2017 Bentley Mulsanne Speed stands as a monumental achievement in automotive engineering, fusing colossal power with whisper-quiet refinement in a package that redefines luxury sedans. This flagship model from Bentley Motors delivers 530 horsepower from its iconic twin-turbocharged 6.75-liter V8 engine, paired with an astonishing 811 lb-ft of torque, enabling a 0-60 mph sprint in just 4.8 seconds and a top speed of 190 mph. Beyond raw performance, mid-cycle updates introduce enhanced chassis dynamics, noise insulation, and interior luxuries, making it a versatile grand tourer suited for both demanding drives and serene cruises.

Design and Exterior Presence

Measuring over 5.5 meters in length and tipping the scales at approximately 2,685 kg (5,900 pounds), the Mulsanne Speed commands attention with its imposing stature and elegant lines. The 2017 facelift brings a bolder front fascia featuring a wider chrome grille, revised LED headlights with a distinctive floating effect, and new front fenders for a more aggressive stance. At the rear, updated tail-lamps incorporate a bold ‘B’ signature, complemented by exclusive 21-inch alloy wheels that underscore its performance pedigree. Dark-tinted chrome accents on the Speed variant add a sportier flair, distinguishing it from standard models while maintaining Bentley’s timeless sophistication.

This behemoth feels perfectly proportioned on open highways but can dominate narrower UK roads or European lanes, where its width becomes keenly apparent. Hydraulic-assisted steering provides precise, heft-weighted feedback, allowing confident placement even in tight scenarios, defying expectations for a vehicle of its size. The lowered ride height by 0.4 inches and firmer damper settings in Sport mode enhance its planted feel without sacrificing the brand’s hallmark poise.

Powertrain and Performance Capabilities

At the heart lies Bentley’s legendary 6.75-liter V8, twin-turbocharged for the Speed trim to produce 530 hp and 811 lb-ft—25 hp and 59 lb-ft more than base models. mated to an eight-speed automatic transmission, it propels the massive sedan with deceptive grace, building velocity progressively rather than violently. Acceleration feels effortless, with throttle tip-in smoothed for urban finesse, while cylinder deactivation aids marginally better efficiency on longer runs.

On unrestricted autobahns, it maintains composure at 150 mph or beyond, with minimal body lean and surprising agility for its weight. Carbon-ceramic brakes on the Speed variant provide robust stopping power, and variable ride modes—from plush Comfort to taut Sport—allow tailoring to conditions. Real-world testing yielded 21.5 mpg on high-speed runs, exceeding official figures by 15 percent, though city/highway estimates hover at 11/18 mpg.

Chassis Refinements and Driving Dynamics

Bentley’s engineers targeted superior isolation and control for 2017, implementing active engine mounts, recalibrated air suspension with continuous damping control, updated rear control-arm bushings, and a stronger structure. New Dunlop tires feature internal foam lining to suppress road noise, resulting in an eerily quiet cabin where only passing scenery betrays motion. The suspension soaks up imperfections like a “pillow-soft” embrace, even on 21-inch wheels, while Sport mode lowers the body and firms responses for spirited handling.

Despite inherent mass urging straight-line preferences, adjustable shocks and air springs deliver controlled cornering with limited roll, making it handle like a lighter machine. It’s not a Porsche Panamera rival in agility but excels as a driver’s limousine, balancing comfort and poise across modes. Rear-wheel drive with electronic aids ensures stability, though its bulk shines brightest on motorways at a serene 1,500 rpm cruise.

Interior Opulence and Technology

Step inside, and the Mulsanne Speed envelops occupants in handcrafted splendor. Diamond-quilted leather, wood veneers, and bespoke knurled controls define the cabin, with the Speed adding sportier flourishes. Rear passengers revel in limo-like space—ample even in standard form, expansive in Extended Wheelbase variants—with amenities for work or relaxation. Noise abatement creates a library-quiet haven, enhanced by improved seals and foam-lined tires.

• Seating: Five passengers with power-adjustable, massaging fronts and rears.
• Infotainment: 8-inch touchscreen with navigation, Bluetooth, CD player, and premium Naim audio.
• Comfort Features: Quad-zone climate, 12V outlets, and optional rear entertainment screens.
• Safety: Alarm, stability control, and optional adaptive cruise.

Build quality is impeccable, though front-seat ergonomics favor chauffeured use over daily driving. The 2017 updates elevate refinement to “step change” levels, prioritizing serenity.

Practicality, Ownership, and Rivals

Fuel thirst (11/18 mpg) and £250,000+ pricing target the elite, unconcerned by costs. Maintenance demands premium service, but Bentley’s warranty and dealer network reassure. Rivals like Rolls-Royce Ghost match refinement but lack the V8 drama; Porsche Panamera offers sharper dynamics at lower cost.

For buyers seeking statement-making luxury with engaging drive, the Mulsanne Speed excels, though urban maneuverability challenges its scale.

Frequently Asked Questions (FAQs)

What is the top speed of the 2017 Bentley Mulsanne Speed?

190 mph, limited for safety on public roads.

How does the Mulsanne Speed’s ride compare to rivals?

Exceptionally plush, rivaling Rolls-Royce with superior noise suppression.

Is the Mulsanne Speed suitable for daily driving?

Best for highways; its size suits chauffeured or long-distance use.

What engine powers the 2017 Mulsanne Speed?

Twin-turbo 6.75L V8 with 530 hp and 811 lb-ft.

Does it have modern fuel-saving tech?

Yes, cylinder deactivation improves efficiency on cruises.