VS
At a Glance
Power
449hp
502hp
Torque
549lb-ft
553lb-ft
Engine
—
3.0 L/183cc
Choosing between the BMW I7 and the Mercedes-Benz S-Class is one of the most common decisions car buyers in the United States face. The BMW I7 delivers 449hp while the Mercedes-Benz S-Class produces 502hp. Pricing starts at $105,700 for the I7 and $119,550 for the S-Class. 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.
Performance
Power Output (hp)
449hp
502hp
Torque (lb-ft)
549lb-ft
553lb-ft
Engine & Drivetrain
Engine Capacity
—
3.0 L/183cc
Engine Layout
—
Inline
Cylinders
—
6
Fuel Type
Electric
Plug-In Hybrid
Forced Induction Device
—
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
1
—
Drive Wheels
Rear Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy - City (mpg)
—
20 (2025)mpg
Fuel Economy - Highway (mpg)
—
29 (2025)mpg
Fuel Tank Capacity (gal)
—
17.7gal
Dimensions
Length (in)
212.2in
209.5in
Width (in)
76.8in
76.9in
Height (in)
60.8in
59.2in
Wheelbase (in)
126.6in
126.6in
Curb Weight (lbs)
5917lbs
5465lbs
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
Tie
1 / 4 categories
Performance
S-Class
Fuel Economy
Tied
Value
I7
Practicality
Tied
Pros & Cons
BMW I7
Lower starting price ($105,700)
Less power than rival (449hp vs 502hp)
Mercedes-Benz S-Class
More powerful engine (502hp)
Higher starting price
Frequently Asked Questions
Which has more power, the I7 or S-Class?
The I7 produces 449hp and 549lb-ft of torque while the S-Class delivers 502hp and 553lb-ft of torque. The S-Class is the more powerful option.
What is the price difference between the I7 and S-Class?
The I7 starts from $105,700 and the S-Class from $119,550. The I7 is cheaper by $13,850 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the I7 or the S-Class?
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