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2021 Audi A6
4.0 TFSI quattro
vs
2025 BMW I5
xDrive40 Sedan

From $109,000 vs From $70,100

Audi A6
Audi A6
4.0 TFSI quattro
From $109,000
View Full Specs →
VS
BMW I5
BMW I5
xDrive40 Sedan
From $70,100
View Full Specs →
At a Glance
Power
591hp @ 6000
389hp
Torque
590lb-ft @ 2050
435lb-ft
Fuel
18 mpg est.
—
Engine
4.0 L/244ci
—

Choosing between the Audi A6 and the BMW I5 is one of the most common decisions car buyers in the United States face. The Audi A6 delivers 591hp @ 6000 while the BMW I5 produces 389hp. Pricing starts at $109,000 for the A6 and $70,100 for the I5. 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
Audi A64.0 TFSI quattro 2021 - From $109,000
BMW I5xDrive40 Sedan 2025 - From $70,100
Performance
Power Output (hp)
591hp @ 6000
389hp
Torque (lb-ft)
590lb-ft @ 2050
435lb-ft
Engine & Drivetrain
Engine Capacity
4.0 L/244ci
—
Cylinders
8
—
Fuel Type
Hybrid
Electric
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
8
1
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
18 mpg est.
—
Fuel Economy - City (mpg)
15mpg
—
Fuel Economy - Highway (mpg)
22mpg
—
Fuel Tank Capacity (gal)
19.3gal
—
Dimensions
Length (in)
196.7in
199.2in
Width (in)
76.8in
74.8in
Height (in)
58.6in
59.6in
Wheelbase (in)
115.3in
117.9in
Curb Weight (lbs)
4960lbs
5187lbs
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
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard

Which Wins?

Overall Winner
Tie
1 / 4 categories
Performance
A6
Fuel Economy
Tied
Value
I5
Practicality
Tied
Audi A6
+Well-rounded specification
-Higher starting price
BMW I5
+Lower starting price ($70,100)
-Few notable weaknesses
Frequently Asked Questions
Which has more power, the A6 or I5?
The A6 produces 591hp @ 6000 and 590lb-ft @ 2050 of torque while the I5 delivers 389hp and 435lb-ft of torque. The A6 is the more powerful option.
What is the price difference between the A6 and I5?
The A6 starts from $109,000 and the I5 from $70,100. The I5 is cheaper by $38,900 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A6 or the I5?
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.

Audi A6 Variants

All A6 Specs →

BMW I5 Variants

All I5 Specs →

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