Audi RS 6 Avant vs. BMW M550
$130,700
$81,500
Highlights
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Starting MSRP |
$130,700
|
$81,500
|
| Engine Type |
Twin Turbo Gas/Electric V-8
|
Twin Turbo Premium Gasoline V-8
|
| MPG |
14 City / 21 Hwy
|
17 City / 25 Hwy
|
| Horsepower |
621 hp
|
523 hp
|
| Drive Type |
All Wheel Drive
|
All Wheel Drive
|
| Seating Capacity |
5
|
5
|
| Basic Warranty |
4 yr / 50,000 mi
|
4 yr / 50,000 mi
|
Engine
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| SAE Net Horsepower @ RPM |
621 @ 6000
|
523 @ 5500
|
| Displacement |
4.0 L/244
|
4.4 L/268
|
| SAE Net Torque @ RPM |
627 @ 2050
|
553 @ 1800
|
| Engine Type |
Twin Turbo Gas/Electric V-8
|
Twin Turbo Premium Gasoline V-8
|
| Transmission Options |
|
|
| MPG |
14 City / 21 Hwy
|
17 City / 25 Hwy
|
| Total Cooling System Capacity |
N/A
|
N/A
|
Tires & Wheels
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Spare Wheel Size |
N/A
|
N/A
|
| Rear Wheel Material |
Aluminum
|
Aluminum
|
| Spare Tire Size |
N/A
|
N/A
|
| Rear Tire Size |
P275/35YR21
|
P275/35YR19
|
| Rear Wheel Size |
21 X 10.5 in
|
19 X 9 in
|
| Front Wheel Size |
21 X 10.5 in
|
19 X 8 in
|
| Spare Wheel Material |
N/A
|
N/A
|
| Front Wheel Material |
Aluminum
|
Aluminum
|
| Front Tire Size |
P275/35YR21
|
P245/40YR19
|
Suspension
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Suspension Type - Rear (Cont.) |
Multi-Link
|
Multi-Link
|
| Suspension Type - Front |
Multi-Link
|
Double Wishbone
|
| Suspension Type - Front (Cont.) |
Multi-Link
|
Double Wishbone
|
| Suspension Type - Rear |
Multi-Link
|
Multi-Link
|
Steering
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Lock to Lock Turns (Steering) |
N/A
|
N/A
|
| Steering Ratio (:1), Overall |
N/A
|
N/A
|
| Steering Type |
Rack-Pinion
|
Rack-Pinion
|
| Turning Diameter - Wall to Wall |
N/A
|
N/A
|
| Turning Diameter - Curb to Curb |
40 ft
|
41 ft
|
Measurements
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Second Shoulder Room |
57 in
|
56 in
|
| Height, Overall |
59 in
|
58 in
|
| Front Head Room |
38 in
|
39 in
|
| Liftover Height |
24 in
|
N/A
|
| Width, Max w/o mirrors |
77 in
|
74 in
|
| Track Width, Rear |
65 in
|
63 in
|
| Front Hip Room |
N/A
|
N/A
|
| Passenger Volume |
N/A
|
99 ft³
|
| Front Shoulder Room |
58 in
|
59 in
|
| Front Leg Room |
41 in
|
41 in
|
| Length, Overall |
197 in
|
196 in
|
| Second Leg Room |
37 in
|
37 in
|
| Wheelbase |
115 in
|
117 in
|
| Track Width, Front |
66 in
|
63 in
|
| Second Hip Room |
N/A
|
N/A
|
| Min Ground Clearance |
N/A
|
N/A
|
| Passenger Capacity |
5
|
5
|
| Second Head Room |
40 in
|
38 in
|
| Trunk Volume |
N/A
|
14 ft³
|
| Cargo Area Length @ Floor to Seat 1 |
N/A
|
Not available
|
| Rear Door Opening Width |
N/A
|
Not available
|
| Cargo Box Width @ Wheelhousings |
N/A
|
Not available
|
| Cargo Volume to Seat 3 |
N/A
|
Not available
|
| Cargo Area Length @ Floor to Seat 2 |
N/A
|
Not available
|
| Rear Door Opening Height |
N/A
|
Not available
|
| Cargo Box (Area) Height |
N/A
|
Not available
|
| Cargo Volume to Seat 1 |
N/A
|
Not available
|
| Cargo Area Width @ Beltline |
N/A
|
Not available
|
| Cargo Area Length @ Floor to Seat 3 |
N/A
|
Not available
|
| Cargo Volume to Seat 2 |
30 ft³
|
Not available
|
Weight & Capacity
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Aux Fuel Tank Capacity, Approx |
N/A
|
N/A
|
| Base Curb Weight |
4,982 lbs
|
4,275 lbs
|
| Wt Distributing Hitch - Max Trailer Wt. |
N/A
|
N/A
|
| Dead Weight Hitch - Max Trailer Wt. |
N/A
|
N/A
|
| Fuel Tank Capacity, Approx |
19 gal
|
18 gal
|
| Wt Distributing Hitch - Max Tongue Wt. |
N/A
|
N/A
|
| Dead Weight Hitch - Max Tongue Wt. |
N/A
|
N/A
|
Safety
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Blind Spot Monitor |
Not available
|
Standard
|
| Stability Control |
Standard
|
Optional
|
| Rear Cross Traffic Alert |
Not available
|
Standard
|
| Lane Departure Warning |
Standard
|
Standard
|
| Backup Camera |
Standard
|
Standard
|
| Automatic Emergency Braking |
Standard
|
Not available
|
Entertainment
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Bluetooth® |
Standard
|
Not available
|
Electrical
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Maximum Alternator Capacity (amps) |
N/A
|
N/A
|
| Cold Cranking Amps @ 0° F (Primary) |
N/A
|
N/A
|
Brakes
| 2026 Audi RS 6 Avant | 2023 BMW M550 | |
|---|---|---|
| Disc - Front (Yes or ) |
Yes
|
Yes
|
| Rear Brake Rotor Diam x Thickness |
15 in
|
N/A
|
| Brake Type |
4-Wheel Disc
|
4-Wheel Disc
|
| Front Brake Rotor Diam x Thickness |
17 in
|
N/A
|
| Brake ABS System |
4-Wheel
|
4-Wheel
|
| Disc - Rear (Yes or ) |
Yes
|
Yes
|
| Brake ABS System (Second Line) |
N/A
|
N/A
|
| Drum - Rear (Yes or ) |
N/A
|
N/A
|
FAQ
Which is more fuel efficient, the 2026 Audi RS 6 Avant or the 2023 BMW M550?
The 2023 BMW M550 is more fuel efficient than the 2026 Audi RS 6 Avant with 20 MPG combined versus 16 MPG combined.
Which car is cheaper, the 2026 Audi RS 6 Avant or the 2023 BMW M550?
The 2023 BMW M550 is cheaper than the 2026 Audi RS 6 Avant with a $81,500 starting MSRP versus a $130,700 starting MSRP.
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