Audi A6 vs Audi A8
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
1999 Audi A8
Overview
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| Selected trim | Premium | Base |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | front wheel drive |
| Fuel type | premium unleaded (required) | regular unleaded |
| Transmission | 7-speed automated manual | 5-speed automatic |
| Engine type | mild hybrid | gas |
| Model year | 2026 | 1999 |
Pricing & market
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| MSRP | $64,100 | $0 (best) |
| Lowest listing price | $14,990 (best) | $32,423 |
| Median listing price | $23,600 (best) | $38,399 |
| Highest listing price | $23,999 (best) | $56,423 |
| For sale now | 5 (best) | 3 |
Fuel economy & range
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| Combined MPG | 23 MPG (best) | 18 MPG |
| City MPG | 20 MPG (best) | 15 MPG |
| Highway MPG | 29 MPG (best) | 24 MPG |
| Fuel tank | 19.3 gal | 23.7 gal (best) |
Performance
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| Horsepower | 362 hp (best) | 230 hp |
| Torque | 406 lb-ft (best) | 235 lb-ft |
| Engine size | 3 L | 3.7 L (best) |
| Cylinders | V6 | V8 |
Size & capability
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| Seating | 5 seats (best) | — |
| Doors | 4 | 4 |
| Cargo volume | 13.5 cu ft | 18 cu ft (best) |
| Curb weight | 4,310 lbs | 3,682 lbs (best) |
| Ground clearance | — | 4.8 in (best) |
| Wheelbase | 115.1 in (best) | 113 in |
| Length | 196.8 in | 198.2 in (best) |
| Width | 73.8 in | 74 in (best) |
| Height | 57.4 in (best) | 56.7 in |
Safety & recalls
| Spec | Audi A6Premium | Audi A8Base |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | 5 / 5 ★ (best) |
| Frontal crash (passenger) | Not Rated | 5 / 5 ★ (best) |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | None reported (best) | 4 |
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 | Audi A8 |
|---|---|---|
| 1 | Premium $64,100 MSRP(Currently comparing) | Base $0 MSRP(Currently comparing) |
| 2 | Premium Plus $67,500 MSRP | — |
| 3 | Prestige $71,400 MSRP | — |
Live inventory
Audi A65 for sale
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Used2019 Audi A6
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Used2019 Audi A6
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Audi A83 for sale
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Used2021 Audi A8
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Black Metallic•Black70,271 mi$32,423Jack Hanania Audi Jacksonville
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Used2023 Audi A8
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Florett Silver Metallic•Cognac Brown30,399 mi$56,423Jack Hanania Audi Jacksonville
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Used2022 Audi A8
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Mythos Black Metallic•black55,088 mi$38,399Countryside Chevrolet
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Audi A6 vs Audi A8 FAQ
- Which is better: 2026 Audi A6 or 1999 Audi A8?
- It depends on priorities. OpenDealer compares 2026 Audi A6 vs 1999 Audi A8 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 1999 Audi A8?
- Based on starting MSRP, the 1999 Audi A8 starts lower at $0. Live Audi A6 listings start at $14,990. Live Audi A8 listings start at $32,423.
- Which has better startingMsrp: 2026 Audi A6 or 1999 Audi A8?
- The 1999 Audi A8 leads on startingMsrp in this comparison (0).
- Which has better combinedMpg: 2026 Audi A6 or 1999 Audi A8?
- The 2026 Audi A6 leads on combinedMpg in this comparison (23).
- Which has better horsepower: 2026 Audi A6 or 1999 Audi A8?
- The 2026 Audi A6 leads on horsepower in this comparison (362).
- Which has better seats: 2026 Audi A6 or 1999 Audi A8?
- The 2026 Audi A6 leads on seats in this comparison (5).
- How do the NHTSA safety ratings compare for 2026 Audi A6 vs 1999 Audi A8?
- NHTSA overall crash-test ratings in this comparison: Audi A6 (Not Rated/5 NHTSA overall).