2025 Cadillac CT5 vs 2026 Audi A3
Comparison Overview
The 2025 Cadillac CT5 explodes onto the scene with its RWD prowess and commanding presence, bringing a robust 237 hp to the luxury segment starting at $47,595. Conversely, the 2026 Audi A3 counters with efficiency and advanced traction, offering standard AWD and superior fuel economy (28 combined MPG) for a significantly lower MSRP of $40,100. The CT5 boasts a significant performance edge, delivering 36 more horsepower and 22 lb-ft more torque than the A3's 201 hp. While the Cadillac feels more substantial with a length of 193.8 inches compared to the A3's 177.3 inches, the smaller Audi compensates with better city fuel economy (24 MPG vs. 23 MPG). The cargo battle is also one-sided, with the CT5 offering 11.9 cu ft against the A3's tighter 8.3 cu ft, defining these two luxury sedans as distinct choices for different priorities.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Audi A3
The 2026 Audi A3 wins for commuters due to its superior fuel efficiency, achieving 34 highway MPG compared to the CT5's 32 MPG, while offering standard AWD.
2025 Cadillac CT5
The 2025 Cadillac CT5 offers substantially more usable space, boasting 11.9 cu ft of cargo capacity versus the A3's 8.3 cu ft.
2025 Cadillac CT5
The Cadillac CT5 delivers a thrilling 237 hp and utilizes a rear-wheel-drive layout paired with a 10-speed automatic transmission, favoring dynamic driving feel.
2026 Audi A3
The 2026 Audi A3 is the superior value proposition, costing $7,495 less while still providing desirable features like AWD and running on regular unleaded fuel.
Choose the Cadillac CT5 if...
- You crave rear-wheel-drive dynamics and the punch of 237 hp for a spirited drive.
- You require more passenger volume and the 11.9 cu ft of cargo space is essential.
- You prefer the feel of a traditional 10-speed shiftable automatic transmission over a dual-clutch setup.
Choose the Audi A3 if...
- Your budget is firm, as the $40,100 MSRP is significantly lower than the CT5's $47,595.
- All-weather traction is a priority, thanks to the standard All-Wheel Drive system.
- Maximizing efficiency is key, as the A3 yields 34 highway MPG on cheaper regular unleaded fuel.
Key Dimensions
| Dimension | Cadillac CT5 | Audi A3 |
|---|---|---|
| Length | 193.8" | 177.3" |
| Width | 74.1" | 71.5" |
| Height | 57.2" | 56.2" |
| Wheelbase | 116.0" | 103.7" |
Features Comparison
Safety
| Feature | Cadillac | Audi |
|---|---|---|
| Blind Spot Monitor | ✓ | ✓ |
| Lane Departure Warning | ✓ | ✓ |
| Lane Keeping Assist System | ✓ | — |
| Rear Cross Traffic Alert | ✓ | ✓ |
| Driver Attention Alert | ✓ | — |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Dual Rear 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 Height Adjustable Headrests | ✓ | ✓ |
| Rear Headrests | 2 | 3 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Rear Solid Disc Brakes | — | ✓ |
Engine
| Feature | Cadillac | Audi |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 237 hp @ 5000 rpm | 201 hp |
| Torque | 258 lb-ft @ 1500 rpm | 236 lb-ft |
| 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 | Cadillac | Audi |
|---|---|---|
| Transmission Type | 10-speed shiftable automatic | 7-speed automated manual |
| Drivetrain Type | rear wheel drive | all wheel drive |
| Center Differential Type | — | Limited Slip |
| Hill Descent Control | — | ✓ |
Fuel
| Feature | Cadillac | Audi |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | regular unleaded |
| EPA Fuel Economy (City/Highway) | 23/32 MPG | 24/34 MPG |
| EPA Fuel Economy (Combined) | 26 MPG | 28 MPG |
| EPA Driving Range (City/Highway) | 391.0/544.0 mi. | 348.0/493.0 mi. |
| Fuel Tank Capacity | 17.0 gal. | 14.5 gal. |
Comfort & Convenience
| Feature | Cadillac | Audi |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Power Tilt and Telescopic Steering Wheel | ✓ | — |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Cruise Control on Steering Wheel | ✓ | — |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Front View Camera | ✓ | — |
| Side View Camera | ✓ | — |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Automatic Parking Assist | ✓ | — |
| Wireless Charging Pad | ✓ | — |
| 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 | ✓ | — |
| Dual Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Sun Sensor | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | — |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Tilt and Telescopic Steering Wheel | — | ✓ |
| Driver Assisted Parking Assist | — | ✓ |
| Cruise Control | — | ✓ |
| Three Zone Climate Control | — | ✓ |
In Car Entertainment
| Feature | Cadillac | Audi |
|---|---|---|
| Infotainment Display | 33.0 in | 10.1 in |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | AKG | — |
| Speaker System | 15 | 6 |
| Subwoofer Count | 1 | — |
| Surround Audio | Discrete | — |
| Android Auto (Wireless) | ✓ | ✓ |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | — |
Power Feature
| Feature | Cadillac | Audi |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | 1st Row Power Glass Extended |
| Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Remote Keyless Entry | — | ✓ |
Frontseats
| Feature | Cadillac | Audi |
|---|---|---|
| Front Head Room | 39.0 in. | 36.8 in. |
| Front Leg Room | 42.4 in. | 41.2 in. |
| Front Shoulder Room | 56.7 in. | 54.8 in. |
| Front Hip Room | 53.7 in. | — |
| Seat Material: Leather | ✓ | ✓ |
| Front Seat Type: Bucket | ✓ | ✓ |
| Driver Seat Power Adjustments | 12-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Driver Seat Memory Settings | 2 | — |
| Passenger Seat Power Adjustments | 12-way | 8-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Driver Seat Ventilation | ✓ | — |
| Passenger Seat Ventilation | ✓ | — |
| Seat Massage Function | ✓ | — |
| Driver Seat Heating | — | Multi-level |
| Passenger Seat Heating | — | Multi-level |
Rearseats
| Feature | Cadillac | Audi |
|---|---|---|
| Rear Head Room | 36.6 in. | 36.6 in. |
| Rear Leg Room | 37.9 in. | 35.2 in. |
| Rear Shoulder Room | 55.7 in. | 53.0 in. |
| Rear Hip Room | 53.7 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | ✓ |
| Pass-Thru Center Armrest | ✓ | ✓ |
Tires and Wheels
| Feature | Cadillac | Audi |
|---|---|---|
| Wheel Finish | Painted Alloy | — |
| Wheel Diameter | 18 in | 17 in |
| Tire Size | 245/45R18 | 225/45R17 |
| Tire Type | ✓ | All Season |
| Wheel Material | — | Alloy |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside Mounted |
Suspension
| Feature | Cadillac | Audi |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Cadillac | Audi |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 6 yr./ 70000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 4 yr./ 50000 mi. | 12 yr./ unlimited mi. |
| Roadside Assistance | 6 yr./ 70000 mi. | 4 yr./ unlimited mi. |
| Complimentary Scheduled Maintenance | 1 yr./ unlimited mi. | 3 yr./ 30000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Cadillac CT5 and 2026 Audi A3.
What is the biggest performance difference between the 2025 CT5 and the 2026 A3?
The Cadillac CT5 offers a significant advantage with 237 hp and 258 lb-ft of torque, clearly outgunning the Audi A3's 201 hp and 236 lb-ft. This 36 hp difference, combined with the CT5's RWD bias, delivers a much more aggressive acceleration feel.
Which sedan is better equipped for poor weather conditions?
The 2026 Audi A3 is better equipped due to its standard All-Wheel Drive (AWD) system. The standard Cadillac CT5 configuration uses a Rear Wheel Drive (RWD) system, requiring an optional upgrade for AWD capability.
How much more expensive is the 2025 Cadillac CT5 to purchase?
The Cadillac CT5 has an MSRP of $47,595, making it $7,495 more expensive than the 2026 Audi A3's starting price of $40,100.
Is the cargo capacity noticeably different between these two luxury sedans?
Yes, the CT5 offers 11.9 cu ft of cargo space, which is substantially more than the A3’s 8.3 cu ft. This difference of 3.6 cubic feet impacts utility for groceries or luggage.
Do I have to use premium gasoline in both vehicles?
The 2025 Cadillac CT5 recommends premium unleaded fuel for its engine performance. Conversely, the 2026 Audi A3 is designed to run on less expensive regular unleaded fuel.
Which car is physically larger?
The Cadillac CT5 is the larger vehicle, measuring 193.8 inches long and 74.1 inches wide. The Audi A3 is more compact at 177.3 inches in length and 71.5 inches in width, making it slightly nimbler.
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