VS
At a Glance
Power
248hp @ 4300
325hp @ 5500
Torque
273lb-ft @ 1600
380lb-ft @ 2000-4000
Fuel
28 mpg est.
24 mpg est.
Engine
2.0 L/121ci
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Choosing between the Audi A6 and the Cadillac Ct4 V is one of the most common decisions car buyers in the United States face. The Audi A6 delivers 248hp @ 4300 while the Cadillac Ct4 V produces 325hp @ 5500. On fuel, the A6 returns 28 mpg est. while the Ct4 V uses 24 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $54,900 for the A6 and $50,600 for the Ct4 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 A6Premium Plus 45 TFSI quattro 2021 - From $54,900
Cadillac Ct4 V4dr Sdn 2026 - From $50,600
Performance
Power Output (hp)
248hp @ 4300
325hp @ 5500
Torque (lb-ft)
273lb-ft @ 1600
380lb-ft @ 2000-4000
Engine & Drivetrain
Engine Capacity
2.0 L/121ci
—
Cylinders
4
4
Fuel Type
Hybrid
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
7
—
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
28 mpg est.
24 mpg est.
Fuel Economy - City (mpg)
24 (2020)mpg
20mpg
Fuel Economy - Highway (mpg)
32 (2020)mpg
29mpg
Fuel Tank Capacity (gal)
19.3gal
17gal
Dimensions
Length (in)
194.4in
187.2in
Width (in)
74.3in
71.4in
Height (in)
57.4in
56in
Wheelbase (in)
115.1in
109in
Curb Weight (lbs)
4101lbs
3616lbs
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
✓ 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 Ct4 V
2 / 4 categories
Performance
Ct4 V
Fuel Economy
A6
Value
Ct4 V
Practicality
Tied
Pros & Cons
Audi A6
Better fuel economy (28 mpg est.)
Higher starting price
Cadillac Ct4 V
Lower starting price ($50,600)
Higher fuel consumption (24 mpg est.)
Frequently Asked Questions
Which is more fuel efficient, the A6 or Ct4 V?
The A6 gets 28 mpg est. and the Ct4 V gets 24 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 Ct4 V?
The A6 produces 248hp @ 4300 and 273lb-ft @ 1600 of torque while the Ct4 V delivers 325hp @ 5500 and 380lb-ft @ 2000-4000 of torque. The Ct4 V is the more powerful option.
What is the price difference between the A6 and Ct4 V?
The A6 starts from $54,900 and the Ct4 V from $50,600. The Ct4 V is cheaper by $4,300 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A6 or the Ct4 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.
Also Consider