VS
At a Glance
Power
335hp @ 5000
409hp @ 5800
Torque
368lb-ft @ 1600
405lb-ft @ 1300
Fuel
25 mpg est.
20 mpg est.
Engine
3.0 L/183ci
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 335hp @ 5000 while the Genesis G90 produces 409hp @ 5800. On fuel, the 8 Series returns 25 mpg est. while the G90 uses 20 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $94,500 for the 8 Series and $103,000 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 Series840i Gran Coupe 2026 - From $94,500
Genesis G903.5T e-SC AWD 2026 - From $103,000
Performance
Power Output (hp)
335hp @ 5000
409hp @ 5800
Torque (lb-ft)
368lb-ft @ 1600
405lb-ft @ 1300
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
3.5 L/212ci
Engine Layout
Inline
V
Cylinders
6
6
Fuel Type
Gasoline
—
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic w/OD
Number of Gears
8
8
Drive Wheels
Rear Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
25 mpg est.
20 mpg est.
Fuel Economy - City (mpg)
21mpg
17mpg
Fuel Economy - Highway (mpg)
29mpg
24mpg
Fuel Tank Capacity (gal)
18gal
19.3gal
Dimensions
Length (in)
200.2in
207.7in
Width (in)
76.1in
76in
Height (in)
55.2in
58.7in
Wheelbase (in)
119in
125.2in
Curb Weight (lbs)
4262lbs
5126lbs
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
BMW 8 Series
2 / 4 categories
Performance
G90
Fuel Economy
8 Series
Value
8 Series
Practicality
Tied
Pros & Cons
BMW 8 Series
Better fuel economy (25 mpg est.)
Lower starting price ($94,500)
Few notable weaknesses
Genesis G90
Well-rounded specification
Higher fuel consumption (20 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the 8 Series or G90?
The 8 Series gets 25 mpg est. and the G90 gets 20 mpg est. on the combined cycle. The 8 Series 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 335hp @ 5000 and 368lb-ft @ 1600 of torque while the G90 delivers 409hp @ 5800 and 405lb-ft @ 1300 of torque. The G90 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 $103,000. The 8 Series is cheaper by $8,500 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