The BMW X6 M Competition stands as the pinnacle of BMW’s high-performance SUV lineup for 2024, fusing a monstrous twin-turbocharged 4.4-liter V8 engine with cutting-edge mild-hybrid technology. This beast delivers 617 horsepower and 750 Nm of torque, propelling it from 0-62 mph in just 3.9 seconds while electronically limited to 178 mph. Yet, its £126,000+ starting price and uncompromising nature divide opinions, appealing to thrill-seekers while challenging everyday drivers.
Engine and Powertrain: V8 Muscle Meets Hybrid Efficiency
At the heart of the X6 M Competition lies BMW M’s renowned S63 4.4-liter twin-turbo V8, now augmented by a 48-volt mild-hybrid system. This setup adds a modest electric boost for smoother low-end response and slight fuel economy gains, though real-world figures hover far below the official 21.8 mpg combined rating. The engine’s thunderous exhaust note and explosive acceleration make it a visceral experience, with power routed through an eight-speed automatic transmission featuring shortened ratios in second and third gears for sharper launches.
The all-wheel-drive system, shared with the M5 but without front-axle decoupling, employs 4WD and 4WD Sport modes. In Sport, torque heavily biases to the rear, aided by an active M locking differential that ensures precise power distribution. This configuration allows for controlled slides and high-speed stability, though it demands smooth roads to shine.
Chassis Dynamics: Track-Focused Setup on Public Roads
Unlike many luxury SUVs, the X6 M Competition opts for coil springs and adaptive dampers over air suspension, paired with massive 22-inch wheels. This choice prioritizes handling sharpness but results in a ride that’s harsh over imperfect surfaces. Reviewers note constant reactions to road imperfections, with the tall seating position amplifying the sense of mass—over 2.5 tons in kerb weight.
Steering feels weighted and somewhat detached, lacking the precision of lighter M cars like the M3. Braking is strong with standard steel discs (ceramics not offered), though the nose dives under heavy deceleration due to inertia. On sweeping corners, it carries speed impressively, with throttle modulation enabling line adjustments via the rear diff. However, on undulating British B-roads, it feels disjointed, bullying its way rather than flowing.
| Key Performance Specs | Details |
|---|---|
| Engine | 4.4L Twin-Turbo V8 Mild-Hybrid |
| Power / Torque | 617 bhp / 750 Nm |
| 0-62 mph | 3.9 seconds |
| Top Speed | 178 mph (limited) |
| Fuel Economy | 21.8 mpg (official) |
| Price (Base) | £126,050 |
Design and Aerodynamics: Aggressive Stance with Purpose
The X6 M Competition’s coupe-like roofline and bulging wheel arches scream aggression, measuring 4,948 mm long and 2,212 mm wide. Updated 2024 styling includes sharper LED headlights, larger kidney grilles, and new paint options like Brooklyn Grey. Its low-slung profile aids high-speed stability, but the 21-22-inch wheels appear undersized in the arches, contributing to a jacked-up stance.
Aerodynamic tweaks, including active flaps, help manage the tall body’s drag. Inside, the cabin boasts BMW’s curved dual-screen iDrive 8.5 infotainment, carbon-fiber accents, and M-specific bucket seats. Space is generous upfront with supportive bolstering, but rear headroom suffers from the sloping roof, and the 580-liter boot is smaller than the X5’s.
Interior Technology and Comfort: Luxury Meets Sport
BMW’s latest iDrive system dominates the dash with a 14.9-inch touchscreen and 12.3-inch driver display, offering intuitive menus and wireless Apple CarPlay/Android Auto. Ambient lighting, a Bowers & Wilkins audio upgrade, and heated/ventilated seats elevate luxury. However, the firm ride transmits vibrations, making long journeys fatiguing.
- Tech Highlights: Curved OLED displays, heads-up display, adaptive cruise with lane-keep.
- Comfort Trade-offs: Stiff suspension compromises refinement on potholed roads.
- Practicality: Ample front space, compromised rear due to roofline.
Real-World Efficiency and Running Costs
Despite hybrid assistance, expect mid-teens mpg in mixed driving, with CO2 emissions at 291 g/km incurring high taxes. Maintenance for the V8 and AWD is pricey, and tires wear quickly under its power. It’s on sale now, with tested examples reaching £143,000 loaded.
Rivals Comparison: How It Stacks Up
The X6 M Competition faces stiff competition from the Porsche Cayenne Turbo GT (more agile), Mercedes-AMG GLE 63 S (plusher), and Audi RS Q8 (balanced). Its raw power edges the M60i sibling, but lacks rear-wheel steering found there.
| Model | Power (bhp) | 0-62 mph (s) | Price (£) |
|---|---|---|---|
| X6 M Comp | 617 | 3.9 | 126k+ |
| Cayenne Turbo GT | 650 | 3.3 | 150k+ |
| GLE 63 S | 612 | 3.9 | 140k+ |
| RS Q8 | 600 | 3.8 | 120k+ |
Verdict: For Enthusiasts Only
The 2024 BMW X6 M Competition excels as a straight-line monster and track-day tool, but its brutal ride and high costs limit broad appeal. Ideal for those prioritizing M-division drama over daily usability.
Frequently Asked Questions
Is the BMW X6 M Competition worth the price?
At over £126,000, it’s for buyers seeking ultimate V8 performance, but rivals offer better all-round ability.
How does the mild-hybrid system work?
A 48V motor assists the V8 for torque fill and minor efficiency gains, without full-electric driving.
What’s the fuel economy like in reality?
Expect 15-18 mpg in mixed use, far from the 21.8 mpg official figure.
Can it handle off-road?
Minimal ground clearance and road-biased setup make it strictly on-road focused.
Is rear space adequate?
Front is excellent; rear headroom is tight for adults due to the coupe roofline.
References
- New BMW X6 M Competition 2024 review: a brutal super SUV — Auto Express. 2024-01-24. https://www.autoexpress.co.uk/bmw/x6/362099/bmw-x6-m-competition-2024-review-brutal-and-brutish-super-suv
- BMW X6 M Competition 2024 review – brutal, fast but deeply compromised — Evo Magazine. 2024-07-18. https://www.evo.co.uk/bmw/x6/m
- BMW X6 review — Auto Express. 2024-01-24. https://www.autoexpress.co.uk/bmw/x6
- 2024 BMW X6 Review — MotorTrend. 2024. https://www.motortrend.com/cars/bmw/x6/2024

