VS
At a Glance
Power
591hp @ 6000
668hp @ 6500
Torque
590lb-ft @ 2050
659lb-ft @ 3600
Fuel
18 mpg est.
16 mpg est.
Engine
4.0 L/244ci
6.2L/376ci
Choosing between the Audi A6 and the Cadillac Ct5 V is one of the most common decisions car buyers in the United States face. The Audi A6 delivers 591hp @ 6000 while the Cadillac Ct5 V produces 668hp @ 6500. On fuel, the A6 returns 18 mpg est. while the Ct5 V uses 16 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $116,500 for the A6 and $58,300 for the Ct5 V. 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 2022 - From $116,500
Cadillac Ct5 V4dr Sdn Blackwing 2026 - From $58,300
Performance
Power Output (hp)
591hp @ 6000
668hp @ 6500
Torque (lb-ft)
590lb-ft @ 2050
659lb-ft @ 3600
Engine & Drivetrain
Engine Capacity
4.0 L/244ci
6.2L/376ci
Cylinders
8
8
Fuel Type
Hybrid
Gasoline
Forced Induction Device
Turbocharged
Supercharged
Transmission
Automatic
Manual
Number of Gears
8
6
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
18 mpg est.
16 mpg est.
Fuel Economy - City (mpg)
15mpg
13mpg
Fuel Economy - Highway (mpg)
22mpg
20mpg
Fuel Tank Capacity (gal)
19.3gal
17.4gal
Dimensions
Length (in)
196.7in
194.9in
Width (in)
76.8in
74.1in
Height (in)
58.6in
56.5in
Wheelbase (in)
115.3in
116in
Curb Weight (lbs)
4982lbs
4123lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
—
Traction Control
✓ 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
The Verdict
Which Wins?
Overall Winner
Cadillac Ct5 V
2 / 4 categories
Performance
Ct5 V
Fuel Economy
A6
Value
Ct5 V
Practicality
Tied
Pros & Cons
Audi A6
Better fuel economy (18 mpg est.)
Higher starting price
Cadillac Ct5 V
Lower starting price ($58,300)
Higher fuel consumption (16 mpg est.)
Frequently Asked Questions
Which is more fuel efficient, the A6 or Ct5 V?
The A6 gets 18 mpg est. and the Ct5 V gets 16 mpg est. on the combined cycle. The A6 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 A6 or Ct5 V?
The A6 produces 591hp @ 6000 and 590lb-ft @ 2050 of torque while the Ct5 V delivers 668hp @ 6500 and 659lb-ft @ 3600 of torque. The Ct5 V is the more powerful option.
What is the price difference between the A6 and Ct5 V?
The A6 starts from $116,500 and the Ct5 V from $58,300. The Ct5 V is cheaper by $58,200 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A6 or the Ct5 V?
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.