2025 BMW M8 vs 2026 Genesis G90

$138,800 · Coupe

$92,700 · Sedan

Comparison Overview

The 2025 BMW M8 bursts onto the scene as a pure performance coupe, leveraging a staggering 617 hp to deliver a visceral thrill, contrasting sharply with the 2026 Genesis G90, which offers supreme luxury as a larger sedan with 375 hp. While the M8 prioritizes raw speed, its MSRP rockets to $138,800, creating a massive $46,100 gap compared to the G90's $92,700 entry point. This performance delta directly impacts efficiency; the M8 manages only 17 MPG combined, while the G90 achieves 21 MPG combined, a meaningful 4 MPG advantage for the Genesis on long hauls. The M8's compact 191.8-inch length gives it nimbleness, whereas the G90 stretches to 207.7 inches, prioritizing interior presence over outright agility, despite both utilizing AWD systems.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Genesis G90

The Genesis G90 is the superior commuter due to its superior 21 MPG combined fuel economy compared to the M8's 17 MPG.

👨‍👩‍👧‍👦 Best for Families

2026 Genesis G90

The Genesis G90, being a sedan and slightly taller at 58.7 inches, offers a more practical and spacious configuration than the low-slung M8 coupe.

🏎️ Best for Enthusiasts

2025 BMW M8

The BMW M8 is the undeniable winner here, boasting an intoxicating 617 hp versus the G90's 375 hp.

💰 Best Value

2026 Genesis G90

The Genesis G90 offers luxury refinement for $46,100 less than the high-performance BMW M8.

Choose the BMW M8 if...

You must have exhilarating acceleration afforded by 617 horsepower.
You prefer the dedicated, aggressive styling and handling of a low-slung coupe body style.
Budget is secondary to achieving the highest possible performance metrics, even if it means paying $138,800.

Choose the Genesis G90 if...

You require better daily efficiency, benefiting from 21 MPG combined fuel economy.
You value significant savings, costing $46,100 less than the M8 at an MSRP of $92,700.
Your driving prioritizes passenger comfort and ride quality over raw sporting capability, indicated by the larger sedan dimensions.

Key Dimensions

Dimension	BMW M8	Genesis G90
Length	191.8"	207.7"
Width	74.9"	76.0"
Height	53.6"	58.7"
Wheelbase	111.3"	125.2"

Features Comparison

Safety

Feature	BMW	Genesis
Lane Departure Warning	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Brake Drying	✓	—
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
LED Headlights	✓	✓
Adaptive Headlights	✓	—
Self-Leveling Headlights	✓	—
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	—
Front Headrests	2	2
Front Fixed Headrests	✓	—
Rear Headrests	2	3
Rear Integrated Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Dual Rear Side-Mounted Airbags	—	✓
Rear Door Child Safety Locks	—	✓
Headlight Delay-Off	—	✓
Front Power Adjustable Headrests	—	✓
Rear Height Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	BMW	Genesis
Base Engine Displacement	4.4 L	3.5 L
Number of Cylinders	V8	V6
Base Engine Type	gas	gas
Horsepower	617 hp @ 6000 rpm	375 hp @ 5800 rpm
Torque	553 lb-ft @ 1800 rpm	391 lb-ft @ 1300 rpm
Number of Valves	32	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	BMW	Genesis
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Center Differential Type	—	Limited Slip

Fuel

Feature	BMW	Genesis
Fuel Type	premium unleaded (required)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	15/22 MPG	18/26 MPG
EPA Fuel Economy (Combined)	17 MPG	21 MPG
EPA Driving Range (City/Highway)	301.5/442.2 mi.	347.4/501.8 mi.
Fuel Tank Capacity	20.1 gal.	19.3 gal.

Comfort & Convenience

Feature	BMW	Genesis
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Wireless Charging Pad	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Front Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Dual Zone Climate Control	✓	—
Interior Air Filtration	✓	—
Extended Cabin Heating/Cooling	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	—
Front View Camera	—	✓
Side View Camera	—	✓
Front Parking Sensors	—	✓
Rear Parking Sensors with Side Sensing	—	✓
Automatic Parking Assist	—	✓
Adaptive Cruise Control	—	✓
Rear Cupholders	—	✓
Rear Door Pockets	—	✓
Overhead Console with Storage	—	✓
Three Zone Climate Control	—	✓
Rear Ventilation Ducts with Fan Control	—	✓

In Car Entertainment

Feature	BMW	Genesis
Infotainment Display	12.3 in	12.3 in
AM/FM Stereo	✓	✓
Premium Speaker Brand	Harman/Kardon	—
Stereo Power	464W	1400W
Speaker System	16	15
Surround Audio	Discrete	Discrete
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
Auxiliary Audio Input	✓	—
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	12 months	3 months
Premium Brand Speakers	—	Bang & Olufsen
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	BMW	Genesis
One-Touch Power Windows	2	4
Keyless Entry	✓	✓
Reverse Tilt Passenger Mirror	✓	—
Heated Mirrors	✓	✓
Moonroof Type	—	1st Row Power Glass Extended

Frontseats

Feature	BMW	Genesis
Front Head Room	38.9 in.	39.4 in.
Front Leg Room	42.1 in.	42.3 in.
Front Shoulder Room	57.2 in.	59.1 in.
Seat Material: Premium Leather	✓	✓
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	12-way	18-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Thigh Extension	✓	✓
Driver Seat Memory Settings	2	3
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Passenger Seat Thigh Extension	✓	✓
Passenger Seat Memory Settings	2	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	✓
Passenger Seat Ventilation	✓	✓
Front Seat Type: Bucket	—	✓
Passenger Seat Power Adjustments	—	16-way
Seat Massage Function	—	✓

Rearseats

Feature	BMW	Genesis
Rear Head Room	33.6 in.	38.0 in.
Rear Leg Room	29.5 in.	37.8 in.
Rear Shoulder Room	46.9 in.	57.9 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓
Heated Rear Seats (Multi-Level)	—	✓

Tires and Wheels

Feature	BMW	Genesis
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Size	20 x 10.5 in.	20 x 9.5 in.
Tire Type	Performance	All Season
Tire Size	285/35R20	275/40R20
Spare Tire Type	—	Temporary
Spare Tire Location	—	Inside Mounted

Suspension

Feature	BMW	Genesis
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	—
Rear Stabilizer Bar	✓	—

Warranty

Feature	BMW	Genesis
Basic Warranty	4 yr./ 50000 mi.	5 yr./ 60000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	10 yr./ 100000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	7 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	5 yr./ unlimited mi.
Complimentary Scheduled Maintenance	3 yr./ 36000 mi.	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 BMW M8 and 2026 Genesis G90.

How significant is the power difference between the 2025 BMW M8 and the 2026 Genesis G90?

The power gap is vast; the BMW M8 delivers 617 hp and 553 lb-ft of torque, while the Genesis G90 offers 375 hp and 391 lb-ft of torque. This 242 hp difference translates directly into significantly faster acceleration times for the M8.

Which vehicle makes more sense for long-distance highway cruising regarding fuel consumption?

The Genesis G90 is the clear winner for efficiency on long hauls, achieving 26 MPG on the highway compared to the M8's 22 MPG highway rating. This efficiency difference is consistent across the board, with the G90 netting 21 MPG combined versus 17 MPG for the M8.

Is the M8’s premium fuel requirement substantially different from the G90’s?

Yes, the BMW M8 explicitly requires premium unleaded fuel to sustain its high-output engine, whereas the Genesis G90 only recommends premium, potentially offering a slight operational cost benefit if standard fuel is used sparingly.

Comparing size, how much larger is the 2026 Genesis G90 compared to the 2025 BMW M8?

The Genesis G90 is substantially larger, measuring 207.7 inches in length compared to the M8’s 191.8 inches. It is also taller (58.7 inches vs. 53.6 inches), reflecting its focus on sedan luxury over coupe aerodynamics.

Does the difference in body style significantly impact usable storage space?

The coupe M8 offers 14.8 cu ft of cargo capacity, surprisingly slightly more than the larger G90 sedan, which provides 12 cu ft of storage space, suggesting the M8's trunk design is slightly deeper or more accommodating.