BMW M5 717bhp Hybrid Super-Saloon: Expert Review

The BMW M5 enters its seventh generation as a benchmark-setting super-saloon, fusing a plug-in hybrid system with a twin-turbo V8 for unprecedented versatility. This G90 model delivers 717 horsepower, a usable electric-only range, and chassis dynamics that defy its 2,510kg weight, making it ideal for enthusiasts seeking both track thrills and daily refinement.

Engineering Marvel: Hybrid V8 Heart

At the core lies a sophisticated plug-in hybrid powertrain: a 575bhp 4.4-liter twin-turbo V8 paired with a 194bhp electric motor, yielding a combined 717bhp and 738lb ft of torque. Power routes through an eight-speed M Steptronic transmission to all four wheels, with modes like Hybrid, Electric, eControl, Dynamic, and Dynamic Plus unlocking varying capabilities. In Electric mode, it achieves around 40 miles of range, slashing emissions and running costs for urban commutes.

Select Dynamic or Dynamic Plus for full output, transforming the M5 into a hypercar rival. Despite the 3.5-second 0-62mph time—slightly behind its predecessor—the electric boost delivers explosive real-world acceleration, with instant throttle response filling any turbo lag. Drivers can switch to rear-wheel drive via the M Driver menu for smoky drifts, sending all power to 21-inch rear tires.

This table highlights how the new M5 trades minimal acceleration for vastly more power and efficiency.

Chassis Mastery: Handling Beyond Expectations

BMW’s engineers equipped the M5 with four-wheel steering, adaptive M suspension, and massive tires, enabling cornering grip that belies its mass. On twisty roads, it feels agile and planted, with precise steering feedback. The all-wheel-drive system enhances traction, while rear-drive mode adds playful oversteer potential.

• Adaptive dampers balance comfort and sportiness across modes.
• Active roll control minimizes body lean in aggressive driving.
• Torque vectoring sharpens turn-in without understeer.

Braking is confident, blending regenerative electric deceleration with strong mechanical anchors. In Sport Plus, the e-motor adds torque pulses during shifts for drama, while brake feel remains natural.

Interior Refinement: Luxury Meets Functionality

The cabin exudes premium quality with a curved dual-screen infotainment setup running BMW’s iDrive 8.5. Seats offer generous bolstering and heating/ventilation, accommodating taller drivers comfortably. Rear legroom and headroom surpass many rivals, enhanced by the 5 Series platform’s growth.

Physical controls for climate and M-specific functions reduce screen dependency. Build quality shines with soft-touch materials and ambient lighting, though some plastics feel less upscale than Mercedes equivalents.

Practicality Considerations: Space and Storage

Boot space suffers from the underfloor battery: 466 liters in the saloon versus 490 in the i5 or 535 in an Audi RS7. The M5 Touring counters with 500 liters, expandable for family hauls. Fuel tank capacity supports long trips, aided by the hybrid’s efficiency—up to 30mpg combined in mixed driving.

Safety and Reliability: Built to Endure

The related i5 earned five Euro NCAP stars in 2023, scoring 86% for vulnerable road users—the year’s best. Standard aids include adaptive cruise, lane-keeping, and 360-degree cameras. The chassis reinforcement handles high-speed stresses, with robust PHEV components from BMW’s proven systems.

M5 Touring Variant: Estate Excellence

The wagon expands utility without diluting thrills. It retains identical power and dynamics, with a more practical 500-liter boot (1,700 liters folded). Chassis tuning ensures wagon balance matches the saloon, making it the “most compelling M5 package” for versatile owners.

Ownership Realities: Costs and Longevity

Starting around £110,000, the M5 undercuts some rivals but incurs high insurance and tire wear. PHEV tax benefits and 40-mile e-range lower running costs. Long-distance tests confirm comfort over 700 miles, with the V8’s charisma shining.

1. Premium fuel required for optimal performance.
2. Annual servicing around £1,000.
3. Residual values strong due to M badge desirability.

Rivals Comparison: M5 vs. the Field

The M5 excels in hybrid versatility and handling value.

Technology Suite: Cutting-Edge Features

Highlights include augmented reality navigation, wireless charging, and M-specific apps for track telemetry. Over-the-air updates keep software fresh. The PHEV system offers eControl for battery preservation on highways.

Driving Impressions: From Road to Track

Everyday drives feel composed, with quiet EV cruising. Push harder, and the V8 growls engagingly—less operatic than Porsche but characterful. Track sessions reveal limits only at the edge, with stability control allowing controlled slides.

Future-Proof Performance: Why It Matters

In an electrifying auto world, the M5 bridges combustion thrill with hybrid efficiency, future-proofing the super-saloon segment.

Frequently Asked Questions

Is the BMW M5 plug-in hybrid reliable?

BMW’s PHEV tech draws from i-series experience; early reports are positive, backed by comprehensive warranties.

How does the M5 handle its weight?

Advanced chassis aids like four-wheel steering make it feel lighter and more nimble than rivals.

What’s the electric range?

Approximately 40 miles, ideal for short trips and tax savings.

M5 Saloon or Touring?

Touring for practicality; both share core dynamics.

Running costs?

Low via PHEV efficiency; offset by premium maintenance.