VS
At a Glance
Power
523hp @ 5500
375hp @ 5800
Torque
553lb-ft @ 1800
391lb-ft @ 1300
Fuel
20 mpg est.
22 mpg est.
Engine
4.4 L/268ci
3.5 L/212ci
Choosing between the BMW 8 Series and the Genesis G90 is one of the most common decisions car buyers in the United States face. The BMW 8 Series delivers 523hp @ 5500 while the Genesis G90 produces 375hp @ 5800. On fuel, the 8 Series returns 20 mpg est. while the G90 uses 22 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $94,500 for the 8 Series and $92,700 for the G90. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
BMW 8 SeriesM850i xDrive Gran Coupe 2026 - From $94,500
Genesis G903.5T AWD 2026 - From $92,700
Performance
Power Output (hp)
523hp @ 5500
375hp @ 5800
Torque (lb-ft)
553lb-ft @ 1800
391lb-ft @ 1300
Engine & Drivetrain
Engine Capacity
4.4 L/268ci
3.5 L/212ci
Engine Layout
—
V
Cylinders
8
6
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
20 mpg est.
22 mpg est.
Fuel Economy - City (mpg)
17mpg
18mpg
Fuel Economy - Highway (mpg)
24mpg
26mpg
Fuel Tank Capacity (gal)
18gal
19.3gal
Dimensions
Length (in)
200.3in
207.7in
Width (in)
76.1in
76in
Height (in)
55.4in
58.7in
Wheelbase (in)
119in
125.2in
Curb Weight (lbs)
4758lbs
4828lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Genesis G90
2 / 4 categories
Performance
8 Series
Fuel Economy
G90
Value
G90
Practicality
Tied
Pros & Cons
BMW 8 Series
Well-rounded specification
Higher fuel consumption (20 mpg est.)
Higher starting price
Genesis G90
Better fuel economy (22 mpg est.)
Lower starting price ($92,700)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the 8 Series or G90?
The 8 Series gets 20 mpg est. and the G90 gets 22 mpg est. on the combined cycle. The G90 is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the 8 Series or G90?
The 8 Series produces 523hp @ 5500 and 553lb-ft @ 1800 of torque while the G90 delivers 375hp @ 5800 and 391lb-ft @ 1300 of torque. The 8 Series is the more powerful option.
What is the price difference between the 8 Series and G90?
The 8 Series starts from $94,500 and the G90 from $92,700. The G90 is cheaper by $1,800 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the 8 Series or the G90?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider