2025 Audi S4 vs 2025 Toyota Mirai
Comparison Overview
The 2025 Audi S4 explodes off the line with a thrilling 349 hp and 369 lb-ft of torque, delivering classic German performance, though it requires premium fuel for its 24 combined MPG. Contrast this with the futuristic 2025 Toyota Mirai, a hydrogen fuel cell sedan that offers an astonishing 402 miles of electric range on a single fill, despite having only 182 hp. The S4 boasts a sharper footprint at 187.5 inches long, while the Mirai stretches to 195.8 inches, offering a slightly roomier feel, although its 9.6 cu ft of cargo space is noticeably tighter than the Audi's 12 cu ft. The S4’s performance edge is substantial, packing 167 more horsepower than the eco-focused Mirai, while maintaining a competitive MSRP gap of just $3,105, setting up a true battle between gasoline power and next-generation zero-emission mobility.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Toyota Mirai
The Toyota Mirai wins for commuters due to its vast 402-mile range, significantly reducing fueling stops compared to the S4's 24 combined MPG.
2025 Audi S4
The Audi S4 offers superior cargo capacity at 12 cubic feet versus the Mirai's 9.6 cubic feet, making it slightly more practical for hauling family gear.
2025 Audi S4
With 349 hp and 369 lb-ft of torque paired with an 8-speed automatic and AWD, the Audi S4 delivers the driving excitement enthusiasts crave.
2025 Toyota Mirai
The Toyota Mirai is the value winner because, at $51,795, it is $3,105 cheaper than the S4 and provides revolutionary hydrogen efficiency.
Choose the Audi S4 if...
- You prioritize raw acceleration, evidenced by the S4's potent 349 hp engine.
- You prefer the confidence and traction of standard All-Wheel Drive handling.
- You need slightly more utility, given the S4’s larger 12 cu ft cargo capacity.
Choose the Toyota Mirai if...
- Zero tailpipe emissions and an incredible 402 miles of electric range are your top priorities.
- You want to save $3,105 upfront, as the Mirai has a lower MSRP of $51,795.
- You prefer the smooth, linear delivery of a Continuously Variable Transmission combined with RWD dynamics.
Key Dimensions
| Dimension | Audi S4 | Toyota Mirai |
|---|---|---|
| Length | 187.5" | 195.8" |
| Width | 72.7" | 74.2" |
| Height | 56.2" | 57.9" |
| Wheelbase | 111.0" | 114.9" |
Features Comparison
Safety
| Feature | Audi | Toyota |
|---|---|---|
| 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 | ✓ | ✓ |
| Self-Leveling Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Integrated Headrests | ✓ | — |
| Rear Headrests | 3 | 3 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Rear Cross Traffic Alert | — | ✓ |
| Front Height Adjustable Headrests | — | ✓ |
| Anti-Theft Alarm System (Remote) | — | ✓ |
Engine
| Feature | Audi | Toyota |
|---|---|---|
| Base Engine Displacement | 3.0 L | — |
| Number of Cylinders | V6 | — |
| Base Engine Type | gas | electric (fuel cell) |
| Horsepower | 349 hp @ 6300 rpm | 182 hp |
| Torque | 369 lb-ft @ 3200 rpm | 221 lb-ft |
| Number of Valves | 24 | — |
| Camshaft Type | Double overhead cam (DOHC) | — |
| Variable Valve Timing | Variable | — |
| Fuel Injection Type | ✓ | — |
Drive Train
| Feature | Audi | Toyota |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | continuously variable-speed automatic |
| Drivetrain Type | all wheel drive | rear wheel drive |
| Center Differential Type | Limited Slip | — |
Fuel
| Feature | Audi | Toyota |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | hydrogen |
| EPA Fuel Economy (City/Highway) | 20/29 MPG | — |
| EPA Fuel Economy (Combined) | 24 MPG | — |
| EPA Driving Range (City/Highway) | 306.0/443.7 mi. | — |
| Fuel Tank Capacity | 15.3 gal. | — |
| EPA Efficiency (City/Highway MPGe) | — | 76/71 MPGe |
| EPA Efficiency (Combined MPGe) | — | 74 MPGe |
| EPA Electric Driving Range | — | 402 mi. |
| EPA Energy Consumption (kWh/100 mi) | — | 72 |
| Battery Capacity | — | 1.24 kWh |
Comfort & Convenience
| Feature | Audi | Toyota |
|---|---|---|
| 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 | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Cruise Control on Steering Wheel | — | ✓ |
| Front View Camera | — | ✓ |
| Side View Camera | — | ✓ |
| Wireless Charging Pad | — | ✓ |
| Overhead Console with Storage | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Interior Air Filtration | — | ✓ |
In Car Entertainment
| Feature | Audi | Toyota |
|---|---|---|
| Infotainment Display | 10.1 in | 12.3 in |
| AM/FM Stereo | ✓ | ✓ |
| Stereo Power | 180W | 1200W |
| Speaker System | 10 | 14 |
| Subwoofer Count | 1 | 1 |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| Android Auto (Wired) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| JBL Speakers | — | ✓ |
| Surround Audio | — | Discrete |
| Android Auto (Wireless) | — | ✓ |
| Satellite Radio | — | ✓ |
| Satellite Radio Trial Period | — | 3 months |
Power Feature
| Feature | Audi | Toyota |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass | — |
| Remote Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Keyless Entry | — | ✓ |
Frontseats
| Feature | Audi | Toyota |
|---|---|---|
| Front Head Room | 37.3 in. | 38.4 in. |
| Front Leg Room | 41.3 in. | 42.2 in. |
| Front Shoulder Room | 55.9 in. | 58.4 in. |
| Seat Material: Leather/Sueded Microfiber | ✓ | — |
| Front Seat Type: Sport | ✓ | — |
| Driver Seat Power Adjustments | 8-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Passenger Seat Power Adjustments | 8-way | 4-way |
| Passenger Seat Height Adjustment | ✓ | — |
| Passenger Seat Lumbar Support | Power | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Massage Function | ✓ | — |
| Front Hip Room | — | 56.5 in. |
| Seat Material: Leatherette | — | ✓ |
| Front Seat Type: Bucket | — | ✓ |
Rearseats
| Feature | Audi | Toyota |
|---|---|---|
| Rear Head Room | 37.4 in. | 36.7 in. |
| Rear Leg Room | 35.7 in. | 33.1 in. |
| Rear Shoulder Room | 54.5 in. | 54.4 in. |
| Split-Folding Rear Seatback | ✓ | — |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru Center Armrest | ✓ | — |
| Rear Hip Room | — | 52.8 in. |
| Folding Center Armrest | — | ✓ |
Tires and Wheels
| Feature | Audi | Toyota |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Diameter | 19 in | — |
| Tire Type | Performance | All Season |
| Tire Size | ✓ | P235/55R19 |
| Spare Tire Type | Temporary | — |
| Spare Tire Location | Inside Mounted | — |
| Wheel Size | — | 19 x 8.0 in |
Suspension
| Feature | Audi | Toyota |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Audi | Toyota |
|---|---|---|
| Basic Warranty | — | 3 yr./ 36000 mi. |
| Drivetrain Warranty | — | 5 yr./ 60000 mi. |
| Hybrid Component Warranty | — | 10 yr./ 150000 mi. |
| Corrosion/Rust Warranty | — | 5 yr./ unlimited mi. |
| Roadside Assistance | — | 3 yr./ unlimited mi. |
| Complimentary Scheduled Maintenance | — | 3 yr./ 35000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Audi S4 and 2025 Toyota Mirai.
How significantly different are the performance capabilities between these two sedans?
The difference is dramatic; the Audi S4 boasts 349 hp, far eclipsing the Toyota Mirai’s 182 hp, meaning the S4 is engineered for quick acceleration while the Mirai focuses on sustainable cruising.
What is the impact of the differing fuel sources on daily refueling?
The S4 runs on premium unleaded gasoline, returning 24 combined MPG, whereas the Mirai runs on hydrogen, offering a substantial 402-mile range, which means hydrogen fill-ups will be far less frequent than gasoline stops.
Is the Audi S4 smaller or larger than the hydrogen-powered Mirai?
The Audi S4 is the more compact vehicle, measuring 187.5 inches in length, while the Toyota Mirai is longer at 195.8 inches, though the Mirai is also slightly wider and taller.
How does the initial cost compare between the 2025 models?
The 2025 Audi S4 starts at $54,900, making it $3,105 more expensive than the 2025 Toyota Mirai, which begins at $51,795.
Which car offers more practical interior space for storage?
The Audi S4 provides better trunk space with 12 cu ft available, compared to the Mirai’s 9.6 cu ft of cargo capacity.
Are the driving dynamics completely different due to the drive types?
Yes, the S4 uses Quattro All-Wheel Drive paired with an 8-speed automatic for performance handling, while the Mirai uses a simpler setup with Rear Wheel Drive and a continuously variable transmission for efficiency.
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