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2018 Audi A4
S4 3.0 TFSI Premium Plus quattro AWD
vs
2026 Cadillac Ct4
4dr Sdn Sport

From $51,400 vs From $44,400

Audi A4
Audi A4
S4 3.0 TFSI Premium Plus quattro AWD
From $51,400
View Full Specs →
VS
Cadillac Ct4
Cadillac Ct4
4dr Sdn Sport
From $44,400
★ Our Pick
View Full Specs →
At a Glance
Power
354hp @ 5400
237hp @ 5000
Torque
369lb-ft @ 1370
258lb-ft @ 1500-4000
Fuel
26 mpg est.
27 mpg est.
Engine
3.0 L/183ci
—

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 354hp @ 5400 while the Cadillac Ct4 produces 237hp @ 5000. On fuel, the A4 returns 26 mpg est. while the Ct4 uses 27 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $51,400 for the A4 and $44,400 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 A4S4 3.0 TFSI Premium Plus quattro AWD 2018 - From $51,400
Cadillac Ct44dr Sdn Sport 2026 - From $44,400
Performance
Power Output (hp)
354hp @ 5400
237hp @ 5000
Torque (lb-ft)
369lb-ft @ 1370
258lb-ft @ 1500-4000
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
—
Engine Layout
V
—
Cylinders
6
4
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
26 mpg est.
27 mpg est.
Fuel Economy - City (mpg)
21mpg
22mpg
Fuel Economy - Highway (mpg)
30mpg
32mpg
Fuel Tank Capacity (gal)
15.3gal
17gal
Dimensions
Length (in)
186.8in
187.2in
Width (in)
72.5in
71.4in
Height (in)
55.3in
56.0in
Wheelbase (in)
111.2in
109in
Curb Weight (lbs)
3858lbs
3468lbs
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
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

Which Wins?

Overall Winner
Cadillac Ct4
2 / 4 categories
Performance
A4
Fuel Economy
Ct4
Value
Ct4
Practicality
Tied
Audi A4
+Well-rounded specification
-Higher fuel consumption (26 mpg est.)
-Higher starting price
Cadillac Ct4
+Better fuel economy (27 mpg est.)
+Lower starting price ($44,400)
-Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the A4 or Ct4?
The A4 gets 26 mpg est. and the Ct4 gets 27 mpg est. on the combined cycle. The Ct4 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 354hp @ 5400 and 369lb-ft @ 1370 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 $51,400 and the Ct4 from $44,400. The Ct4 is cheaper by $7,000 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.

Audi A4 Variants

All A4 Specs →

Cadillac Ct4 Variants

All Ct4 Specs →

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