Audi A6 vs Mercedes-Benz CLA45 AMG S
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz CLA45 AMG S
Overview
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| Selected trim | Premium | AMG CLA 45 S |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 7-speed automated manual | 8-speed automated manual |
| Engine type | mild hybrid | gas |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| MSRP | $64,100 (best) | $67,550 |
| Lowest listing price | $14,990 (best) | — |
| Median listing price | $23,600 (best) | — |
| Highest listing price | $23,999 (best) | — |
| For sale now | 5 (best) | 0 |
Fuel economy & range
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| Combined MPG | 23 MPG | 23 MPG |
| City MPG | 20 MPG | 20 MPG |
| Highway MPG | 29 MPG (best) | 28 MPG |
| Fuel tank | 19.3 gal (best) | 13.5 gal |
Performance
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| Horsepower | 362 hp | 416 hp (best) |
| Torque | 406 lb-ft (best) | 369 lb-ft |
| Engine size | 3 L (best) | 2 L |
| Cylinders | V6 | I4 |
Size & capability
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.5 cu ft (best) | 11.6 cu ft |
| Curb weight | 4,310 lbs | 3,791 lbs (best) |
| Wheelbase | 115.1 in (best) | 107.4 in |
| Length | 196.8 in (best) | 184.8 in |
| Width | 73.8 in (best) | 73.1 in |
| Height | 57.4 in (best) | 55.4 in |
Safety & recalls
| Spec | Audi A6Premium | Mercedes-Benz CLA45 AMG SAMG CLA 45 S |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | — |
| Frontal crash (passenger) | Not Rated | — |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | Audi A6 | Mercedes-Benz CLA45 AMG S |
|---|---|---|
| 1 | Premium $64,100 MSRP(Currently comparing) | AMG CLA 45 S $67,550 MSRP(Currently comparing) |
| 2 | Premium Plus $67,500 MSRP | — |
| 3 | Prestige $71,400 MSRP | — |
Live inventory
Audi A65 for sale
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Used2017 Audi A6
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Used2019 Audi A6
2.0T Premium Plus
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Used2021 Audi A6
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Glacier White•brown72,008 mi$23,999Porsche Conshohocken
Conshohocken, PA
Used2019 Audi A6
Premium
black•black44,560 mi$23,192Audi Tampa
Tampa, FL
Used2019 Audi A6
3.0T Premium Plus
Mythos Black Metallic•Black58,124 mi$23,600LeithCars.com
Raleigh, NC
Audi A6 vs Mercedes-Benz CLA45 AMG S FAQ
- Which is better: 2026 Audi A6 or 2026 Mercedes-Benz CLA45 AMG S?
- It depends on priorities. OpenDealer compares 2026 Audi A6 vs 2026 Mercedes-Benz CLA45 AMG S on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 Audi A6 or 2026 Mercedes-Benz CLA45 AMG S?
- Based on starting MSRP, the 2026 Audi A6 starts lower at $64,100. Live Audi A6 listings start at $14,990.
- Which has better startingMsrp: 2026 Audi A6 or 2026 Mercedes-Benz CLA45 AMG S?
- The 2026 Audi A6 leads on startingMsrp in this comparison (64,100).
- Which has better horsepower: 2026 Audi A6 or 2026 Mercedes-Benz CLA45 AMG S?
- The 2026 Mercedes-Benz CLA45 AMG S leads on horsepower in this comparison (416).
- How do the NHTSA safety ratings compare for 2026 Audi A6 vs 2026 Mercedes-Benz CLA45 AMG S?
- NHTSA overall crash-test ratings in this comparison: Audi A6 (Not Rated/5 NHTSA overall).