VS
At a Glance
Power
261hp @ 5000
237hp @ 5000
Torque
273lb-ft @ 1600
258lb-ft @ 1500-4000
Fuel
29 mpg est.
27 mpg est.
Engine
2.0 L/121ci
—
Choosing between the Audi A4 and the Cadillac Ct4 is one of the most common decisions car buyers in the United States face. The Audi A4 delivers 261hp @ 5000 while the Cadillac Ct4 produces 237hp @ 5000. On fuel, the A4 returns 29 mpg est. while the Ct4 uses 27 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $40,900 for the A4 and $36,000 for the Ct4. 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 A4S line Premium 45 TFSI quattro 2021 - From $40,900
Cadillac Ct44dr Sdn Luxury 2026 - From $36,000
Performance
Power Output (hp)
261hp @ 5000
237hp @ 5000
Torque (lb-ft)
273lb-ft @ 1600
258lb-ft @ 1500-4000
Engine & Drivetrain
Engine Capacity
2.0 L/121ci
—
Cylinders
4
4
Fuel Type
Hybrid
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Auto-Shift Manual w/OD
Automatic
Number of Gears
7
8
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
29 mpg est.
27 mpg est.
Fuel Economy - City (mpg)
24mpg
22mpg
Fuel Economy - Highway (mpg)
34 (2020)mpg
32mpg
Fuel Tank Capacity (gal)
15.3gal
17gal
Dimensions
Length (in)
187.5in
187.2in
Width (in)
72.7in
71.4in
Height (in)
56.2in
56.0in
Wheelbase (in)
111in
109in
Curb Weight (lbs)
3726lbs
3422lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ 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
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
Audi A4
2 / 4 categories
Performance
A4
Fuel Economy
A4
Value
Ct4
Practicality
Tied
Pros & Cons
Audi A4
Better fuel economy (29 mpg est.)
Higher starting price
Cadillac Ct4
Lower starting price ($36,000)
Higher fuel consumption (27 mpg est.)
Frequently Asked Questions
Which is more fuel efficient, the A4 or Ct4?
The A4 gets 29 mpg est. and the Ct4 gets 27 mpg est. on the combined cycle. The A4 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 A4 or Ct4?
The A4 produces 261hp @ 5000 and 273lb-ft @ 1600 of torque while the Ct4 delivers 237hp @ 5000 and 258lb-ft @ 1500-4000 of torque. The A4 is the more powerful option.
What is the price difference between the A4 and Ct4?
The A4 starts from $40,900 and the Ct4 from $36,000. The Ct4 is cheaper by $4,900 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A4 or the Ct4?
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