2025 Audi A4 vs 2026 Cadillac CT4
Comparison Overview
The most significant numerical discrepancy between the 2025 Audi A4 and the 2026 Cadillac CT4 is the Manufacturer's Suggested Retail Price (MSRP), with the Audi commanding a premium of $8,500, starting at $44,100 compared to the Cadillac's $35,600. This price difference is partially justified by the Audi's higher performance metrics, delivering 261 hp and 273 lb-ft of torque versus the CT4's 237 hp and 258 lb-ft of torque. Despite the powertrain disparity, both sedans achieve an identical combined fuel economy rating of 26 MPG. The A4 also offers a slight physical advantage, being 0.3 inches longer and providing 1.3 cubic feet more cargo capacity at 12 cu ft versus the CT4's 10.7 cu ft. The difference in drivetrain architecture—AWD for the Audi versus RWD for the Cadillac—also dictates handling characteristics and baseline performance expectation.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Audi A4
The Audi A4's standard All-Wheel Drive system offers superior all-weather stability desirable for daily commuting over the CT4's RWD setup.
2025 Audi A4
The Audi A4 offers 1.3 cubic feet more cargo space (12 cu ft vs 10.7 cu ft), which is beneficial for carrying family necessities.
2025 Audi A4
The A4 provides a measurable output advantage with 261 hp and 273 lb-ft of torque compared to the CT4's 237 hp and 258 lb-ft.
2026 Cadillac CT4
The Cadillac CT4 presents a strong value proposition by costing $8,500 less while delivering equivalent 26 MPG combined fuel economy.
Choose the Audi A4 if...
- Maximum all-weather traction is required due to its standard All-Wheel Drive.
- The buyer prioritizes slightly higher output, benefiting from 261 hp versus 237 hp.
- A premium badge and higher perceived interior refinement justify the $44,100 MSRP.
Choose the Cadillac CT4 if...
- Keeping the initial purchase price below $36,000 is critical, saving $8,500 upfront.
- Rear-Wheel Drive dynamics are preferred for a more traditional sporting feel.
- A vehicle requiring only premium fuel (recommended) is desired over one that requires premium unleaded (required).
Key Dimensions
| Dimension | Audi A4 | Cadillac CT4 |
|---|---|---|
| Length | 187.5" | 187.2" |
| Width | 72.7" | 71.4" |
| Height | 56.2" | 56.0" |
| Wheelbase | 111.0" | 109.0" |
Features Comparison
Safety
| Feature | Audi | Cadillac |
|---|---|---|
| Lane Departure Warning | ✓ | ✓ |
| Lane Keeping Assist System | ✓ | ✓ |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Rear Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Rear Door Child Safety Locks | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Preparation System | ✓ | — |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Multi-Adjustable Headrests | ✓ | — |
| Rear Headrests | 3 | 2 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Rear Cross Traffic Alert | — | ✓ |
| Dual Rear Side-Mounted Airbags | — | ✓ |
| Front Height Adjustable Headrests | — | ✓ |
| Anti-Theft Alarm System (Remote) | — | ✓ |
Engine
| Feature | Audi | Cadillac |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | mild hybrid | gas |
| Horsepower | 261 hp @ 6300 rpm | 237 hp @ 5000 rpm |
| Torque | 273 lb-ft @ 4200 rpm | 258 lb-ft @ 1500 rpm |
| Number of Valves | 16 | 16 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
| Cylinder Deactivation | — | ✓ |
Drive Train
| Feature | Audi | Cadillac |
|---|---|---|
| Transmission Type | 7-speed automated manual | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | rear wheel drive |
| Center Differential Type | Limited Slip | — |
Fuel
| Feature | Audi | Cadillac |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (recommended) |
| EPA Fuel Economy (City/Highway) | 23/32 MPG | 22/32 MPG |
| EPA Fuel Economy (Combined) | 26 MPG | 26 MPG |
| EPA Driving Range (City/Highway) | 351.9/489.6 mi. | 374.0/544.0 mi. |
| Fuel Tank Capacity | 15.3 gal. | 17.0 gal. |
Comfort & Convenience
| Feature | Audi | Cadillac |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | — |
| Rear Parking Sensors | ✓ | ✓ |
| Adaptive Cruise Control | ✓ | — |
| Universal Remote Transmitter | ✓ | — |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | ✓ |
| Three Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Sun Sensor | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | — |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Cargo Floor Mats | ✓ | — |
| Cruise Control on Steering Wheel | — | ✓ |
| Wireless Charging Pad | — | ✓ |
| Cruise Control | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts | — | ✓ |
In Car Entertainment
| Feature | Audi | Cadillac |
|---|---|---|
| Infotainment Display | 10.1 in | 8.0 in |
| AM/FM Stereo | ✓ | ✓ |
| Stereo Power | 180W | — |
| Speaker System | 10 | 8 |
| Subwoofer Count | 1 | — |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| Auxiliary Audio Input | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Memory Card Slot | ✓ | ✓ |
| Android Auto (Wireless) | — | ✓ |
| Satellite Radio | — | ✓ |
| Satellite Radio Trial Period | — | 3 months |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | Audi | Cadillac |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass | — |
| Remote Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Keyless Entry | — | ✓ |
Frontseats
| Feature | Audi | Cadillac |
|---|---|---|
| Front Head Room | 37.3 in. | 38.3 in. |
| Front Leg Room | 41.3 in. | 42.4 in. |
| Front Shoulder Room | 55.9 in. | 55.2 in. |
| Seat Material: Leather | ✓ | — |
| Front Seat Type: Sport | ✓ | — |
| Driver Seat Power Adjustments | 8-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Passenger Seat Power Adjustments | 8-way | 6-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Front Hip Room | — | 53.0 in. |
| Seat Material: Leatherette | — | ✓ |
| Front Seat Type: Bucket | — | ✓ |
Rearseats
| Feature | Audi | Cadillac |
|---|---|---|
| Rear Head Room | 37.4 in. | 36.5 in. |
| Rear Leg Room | 35.7 in. | 33.4 in. |
| Rear Shoulder Room | 54.5 in. | 53.9 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | ✓ |
| Pass-Thru Center Armrest | ✓ | ✓ |
| Rear Hip Room | — | 52.5 in. |
Tires and Wheels
| Feature | Audi | Cadillac |
|---|---|---|
| Wheel Finish | Painted Alloy | Painted Alloy |
| Wheel Diameter | 18 in | 17 in |
| Tire Type | All Season | ✓ |
| Tire Size | 245/40R H | P225/45R17 |
| Spare Tire Type | Temporary | — |
| Spare Tire Location | Inside Mounted | — |
Suspension
| Feature | Audi | Cadillac |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Audi | Cadillac |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 6 yr./ 70000 mi. |
| Corrosion/Rust Warranty | 12 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Roadside Assistance | 4 yr./ unlimited mi. | 6 yr./ 70000 mi. |
| Complimentary Scheduled Maintenance | — | 1 yr./ unlimited mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Audi A4 and 2026 Cadillac CT4.
How do the transmissions differ between the Audi A4 and Cadillac CT4?
The 2025 Audi A4 utilizes a 7-speed automated manual transmission, focused on quick, sequential shifts. Conversely, the 2026 Cadillac CT4 employs a conventional 8-speed shiftable automatic transmission, offering an extra gear ratio.
Is the 2025 Audi A4 significantly larger than the 2026 Cadillac CT4?
The dimensional differences are minimal; the Audi A4 is only 0.3 inches longer (187.5 in vs 187.2 in) and 1.3 inches wider (72.7 in vs 71.4 in). The most substantial size difference is in the trunk, with the A4 holding 1.3 cubic feet more cargo volume.
Do these cars require the same type of premium fuel?
No, the specifications indicate a crucial difference in fuel requirements: the Audi A4 mandates the use of premium unleaded fuel. The Cadillac CT4 only recommends premium unleaded, suggesting it can operate acceptably on a lower octane base fuel.
Which sedan provides better highway cruising efficiency?
Both vehicles deliver the same 32 MPG on the highway cycle, meaning their aerodynamic efficiency and gearing for sustained speeds are effectively matched on paper. The Audi has a slight edge in city rating (23 MPG vs 22 MPG).
What is the direct performance gap in torque output?
The Audi A4 generates 273 lb-ft of torque, which is 15 lb-ft greater than the 258 lb-ft produced by the Cadillac CT4, giving the Audi an edge in low-to-mid-range acceleration capability.
Is the Cadillac CT4 a viable option for those prioritizing a lower purchase price?
Yes, the CT4 offers substantial savings, undercutting the Audi A4 by $8,500 at the base MSRP level. This significant saving is the primary metric favoring the Cadillac in the value comparison.
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