Audi S6 vs Cadillac CT6
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2020 Cadillac CT6
Overview
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| Selected trim | Premium | Luxury |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | regular unleaded |
| Transmission | 8-speed shiftable automatic | 10-speed shiftable automatic |
| Engine type | mild hybrid | gas |
| Model year | 2025 | 2020 |
Pricing & market
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| MSRP | $75,900 | $58,995 (best) |
| Lowest listing price | — | $24,609 (best) |
| Median listing price | — | $25,981 (best) |
| Highest listing price | — | $30,973 (best) |
| For sale now | 0 | 5 (best) |
Fuel economy & range
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| Combined MPG | 22 MPG (best) | 21 MPG |
| City MPG | 19 MPG (best) | 18 MPG |
| Highway MPG | 27 MPG | 27 MPG |
| Fuel tank | 19.3 gal (best) | 19.2 gal |
Performance
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| Horsepower | 444 hp (best) | 335 hp |
| Torque | 442 lb-ft (best) | 284 lb-ft |
| Engine size | 2.9 L | 3.6 L (best) |
| Cylinders | V6 | V6 |
Size & capability
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.7 cu ft | 15.8 cu ft (best) |
| Towing capacity | — | 1,000 lbs (best) |
| Payload | 1,102 lbs (best) | — |
| Curb weight | 4,519 lbs | 3,985 lbs (best) |
| Wheelbase | 115.3 in | 122.4 in (best) |
| Length | 195 in | 205.8 in (best) |
| Width | 74.3 in (best) | 74 in |
| Height | 56.9 in | 58 in (best) |
Safety & recalls
| Spec | Audi S6Premium | Cadillac CT6Luxury |
|---|---|---|
| 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) | 1 (best) | 2 |
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 S6 | Cadillac CT6 |
|---|---|---|
| 1 | Premium $75,900 MSRP(Currently comparing) | Luxury $58,995 MSRP(Currently comparing) |
| 2 | Premium Plus $80,200 MSRP | Premium Luxury $74,495 MSRP |
| 3 | Prestige $84,100 MSRP | Base $94,895 MSRP |
| 4 | — | Platinum $96,495 MSRP |
Live inventory
Cadillac CT65 for sale
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Certified2016 Cadillac CT6
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Moonstone Metallic•Jet Black74,451 mi$26,900Suttle Buick GMC of Newport News
Newport News, VA
Certified2019 Cadillac CT6
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Shadow Metallic•Jet Black89,125 mi$24,950Suttle Buick GMC of Newport News
Newport News, VA
Used2019 Cadillac CT6
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black raven•Jet Black58,321 mi$30,973Golling Chrysler Dodge Jeep Ram of Grosse Pointe
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Audi S6 vs Cadillac CT6 FAQ
- Which is better: 2025 Audi S6 or 2020 Cadillac CT6?
- It depends on priorities. OpenDealer compares 2025 Audi S6 vs 2020 Cadillac CT6 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2025 Audi S6 or 2020 Cadillac CT6?
- Based on starting MSRP, the 2020 Cadillac CT6 starts lower at $58,995. Live Cadillac CT6 listings start at $24,609.
- Which has better startingMsrp: 2025 Audi S6 or 2020 Cadillac CT6?
- The 2020 Cadillac CT6 leads on startingMsrp in this comparison (58,995).
- Which has better combinedMpg: 2025 Audi S6 or 2020 Cadillac CT6?
- The 2025 Audi S6 leads on combinedMpg in this comparison (22).
- Which has better horsepower: 2025 Audi S6 or 2020 Cadillac CT6?
- The 2020 Cadillac CT6 leads on horsepower in this comparison (550).
- Which has better maxTowingLbs: 2025 Audi S6 or 2020 Cadillac CT6?
- The 2020 Cadillac CT6 leads on maxTowingLbs in this comparison (1,000).
- How do the NHTSA safety ratings compare for 2025 Audi S6 vs 2020 Cadillac CT6?
- NHTSA overall crash-test ratings in this comparison: Audi S6 (Not Rated/5 NHTSA overall).