Audi RS Q8 vs Mercedes-Benz GLS63 AMG
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz GLS63 AMG
Overview
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| Selected trim | Performance | AMG GLS 63 |
| Body style | SUV | SUV |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | mild hybrid | mild hybrid |
| Model year | 2027 | 2026 |
Pricing & market
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| MSRP | $139,700 (best) | $151,050 |
| Lowest listing price | $63,423 (best) | — |
| Median listing price | $151,553 (best) | — |
| Highest listing price | $180,373 (best) | — |
| For sale now | 16 (best) | 0 |
Fuel economy & range
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| Combined MPG | 16 MPG | 17 MPG (best) |
| City MPG | 14 MPG | 15 MPG (best) |
| Highway MPG | 20 MPG | 20 MPG |
| Fuel tank | 22.5 gal | 23.8 gal (best) |
Performance
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| Horsepower | 631 hp (best) | 603 hp |
| Torque | 627 lb-ft | 627 lb-ft |
| Engine size | 4 L | 4 L |
| Cylinders | V8 | V8 |
Size & capability
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| Seating | 5 seats | 7 seats (best) |
| Doors | 4 | 4 |
| Cargo volume | 60 cu ft | 84.7 cu ft (best) |
| Towing capacity | 7,700 lbs | 7,700 lbs |
| Payload | 1,069 lbs (best) | — |
| Curb weight | 5,368 lbs (best) | 6,118 lbs |
| Wheelbase | 117.9 in | 123.4 in (best) |
| Length | 197.7 in | 206.4 in (best) |
| Width | 79 in | 79.9 in (best) |
| Height | 67.5 in | 70.2 in (best) |
Safety & recalls
| Spec | Audi RS Q8Performance | Mercedes-Benz GLS63 AMGAMG GLS 63 |
|---|---|---|
| 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 RS Q8 | Mercedes-Benz GLS63 AMG |
|---|---|---|
| 1 | Performance $139,700 MSRP(Currently comparing) | AMG GLS 63 $151,050 MSRP(Currently comparing) |
Live inventory
Audi RS Q816 for sale
See all
Used2023 Audi RS Q8
4.0T
Daytona Gray Pearl Effect•Black19,460 mi$87,800Jim Coleman Nissan Bethesda
Bethesda, MD
Used2022 Audi RS Q8
4.0T (Tiptronic)
Blue Metallic•black40,731 mi$78,423Jack Hanania Audi Jacksonville
Jacksonville, FL
New2026 Audi RS Q8
performance
Daytona Gray Pearl Effect28 mi$180,373Jack Hanania Audi Jacksonville
Jacksonville, FL
New2026 Audi RS Q8
performance
Glacier White Metallic•Black14 mi$154,043Jack Hanania Audi Jacksonville
Jacksonville, FL
New2027 Audi RS Q8
performance
Daytona Gray Pearl Effect18 mi$156,743Jack Hanania Audi Jacksonville
Jacksonville, FL
Used2022 Audi RS Q8
4.0T quattro
Glacier White•Black55,036 mi$63,423Jack Hanania Audi Orange Park
Jacksonville, FL
Audi RS Q8 vs Mercedes-Benz GLS63 AMG FAQ
- Which is better: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- It depends on priorities. OpenDealer compares 2027 Audi RS Q8 vs 2026 Mercedes-Benz GLS63 AMG on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- Based on starting MSRP, the 2027 Audi RS Q8 starts lower at $139,700. Live Audi RS Q8 listings start at $63,423.
- Which has better startingMsrp: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- The 2027 Audi RS Q8 leads on startingMsrp in this comparison (139,700).
- Which has better combinedMpg: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- The 2026 Mercedes-Benz GLS63 AMG leads on combinedMpg in this comparison (17).
- Which has better horsepower: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- The 2027 Audi RS Q8 leads on horsepower in this comparison (631).
- Which has better seats: 2027 Audi RS Q8 or 2026 Mercedes-Benz GLS63 AMG?
- The 2026 Mercedes-Benz GLS63 AMG leads on seats in this comparison (7).