VS
At a Glance
Power
335hp @ 5000
416hp @ 6750
Torque
368lb-ft @ 1600
369lb-ft @ 3000
Fuel
25 mpg est.
23 mpg est.
Engine
3.0 L/183ci
2.0 L/121ci
Choosing between the BMW 8 Series and the Mercedes-Benz Gt is one of the most common decisions car buyers in the United States face. The BMW 8 Series delivers 335hp @ 5000 while the Mercedes-Benz Gt produces 416hp @ 6750. On fuel, the 8 Series returns 25 mpg est. while the Gt uses 23 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $94,500 for the 8 Series and $102,100 for the Gt. 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 xDrive Coupe 2026 - From $94,500
Mercedes-Benz GtAMG GT 43 Coupe 2026 - From $102,100
Performance
Power Output (hp)
335hp @ 5000
416hp @ 6750
Torque (lb-ft)
368lb-ft @ 1600
369lb-ft @ 3000
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
2.0 L/121ci
Engine Layout
Inline
—
Cylinders
6
4
Fuel Type
Gasoline
—
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic w/OD
Automatic w/OD
Number of Gears
8
—
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
25 mpg est.
23 mpg est.
Fuel Economy - City (mpg)
21mpg
19mpg
Fuel Economy - Highway (mpg)
29mpg
27mpg
Fuel Tank Capacity (gal)
18gal
18.5gal
Dimensions
Length (in)
191.1in
186.1in
Width (in)
74.9in
75.9in
Height (in)
52.8in
53.3in
Wheelbase (in)
111.1in
106.3in
Curb Weight (lbs)
4081lbs
3990lbs
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
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
Gt
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
Mercedes-Benz Gt
Well-rounded specification
Higher fuel consumption (23 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the 8 Series or Gt?
The 8 Series gets 25 mpg est. and the Gt gets 23 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 Gt?
The 8 Series produces 335hp @ 5000 and 368lb-ft @ 1600 of torque while the Gt delivers 416hp @ 6750 and 369lb-ft @ 3000 of torque. The Gt is the more powerful option.
What is the price difference between the 8 Series and Gt?
The 8 Series starts from $94,500 and the Gt from $102,100. The 8 Series is cheaper by $7,600 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the 8 Series or the Gt?
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