The Audi RS6 Avant and RS7 Sportback are both high-performance vehicles that share a platform, engine, and many other components. The question of which is faster is a common one for enthusiasts and potential buyers. This article aims to provide a detailed comparison of the RS6 and RS7, examining various performance metrics and factors to determine which car holds the edge.

RS6 vs. RS7: A Detailed Comparison

Feature RS6 Avant RS7 Sportback
Engine 4.0-liter Twin-Turbo V8 Mild-Hybrid 4.0-liter Twin-Turbo V8 Mild-Hybrid
Horsepower 591 hp 591 hp
Torque 590 lb-ft 590 lb-ft
Transmission 8-speed Tiptronic Automatic 8-speed Tiptronic Automatic
Drivetrain Quattro All-Wheel Drive Quattro All-Wheel Drive
0-60 mph (claimed) 3.5 seconds 3.5 seconds
Top Speed (electronically limited) 155 mph (190 mph with Dynamic Package) 155 mph (190 mph with Dynamic Package)
Curb Weight (approximate) 4,960 lbs 4,927 lbs
Body Style Wagon/Estate Four-Door Coupe/Sportback
Drag Coefficient Higher (due to wagon shape) Lower (more aerodynamic shape)
Cargo Capacity (Rear Seats Up) 30 cubic feet (RS6) 24.9 cubic feet (RS7)
Cargo Capacity (Rear Seats Down) 59.3 cubic feet (RS6) 54.9 cubic feet (RS7)
Fuel Economy (EPA Combined) 18 mpg (estimated) 18 mpg (estimated)
Starting Price (approximate) $129,495 $122,745
Wheelbase 115.3 inches (RS6) 115.3 inches (RS7)
Track Width (Front/Rear) 66.1/65.4 inches (RS6) 66.1/65.4 inches (RS7)
Length 196.6 inches (RS6) 197.2 inches (RS7)
Width 76.3 inches (RS6) 76.8 inches (RS7)
Height 58.7 inches (RS6) 56.0 inches (RS7)
Standard Suspension Adaptive Air Suspension Adaptive Air Suspension
Optional Suspension RS Sport Suspension Plus with Dynamic Ride Control (DRC) RS Sport Suspension Plus with Dynamic Ride Control (DRC)
Braking System Steel brakes standard, Carbon-ceramic brakes optional Steel brakes standard, Carbon-ceramic brakes optional
Turning Circle 40.4 feet (RS6) 40.4 feet (RS7)

Detailed Explanations

Engine: Both the RS6 and RS7 are powered by the same 4.0-liter twin-turbocharged V8 engine featuring mild-hybrid technology. This engine is a powerhouse, delivering exceptional performance and responsiveness. The mild-hybrid system helps improve fuel economy and reduces turbo lag.

Horsepower: Both cars produce an identical 591 horsepower, ensuring a thrilling driving experience. This level of power allows for rapid acceleration and effortless high-speed cruising.

Torque: With 590 lb-ft of torque available across a wide rev range, both the RS6 and RS7 offer impressive pulling power in virtually any situation. This abundant torque contributes to the cars' effortless acceleration and overall driving pleasure.

Transmission: The 8-speed Tiptronic automatic transmission is standard on both models. This transmission offers smooth and quick shifts, enhancing both performance and comfort. It can be operated in automatic mode or manually via paddle shifters.

Drivetrain: Both the RS6 and RS7 feature Audi's legendary Quattro all-wheel-drive system. This system provides exceptional traction and stability, particularly in challenging weather conditions. It distributes power intelligently between the front and rear axles, optimizing grip and handling.

0-60 mph (claimed): Audi claims a 0-60 mph time of 3.5 seconds for both the RS6 and RS7. While this is a manufacturer-provided figure, independent testing often yields similar results, highlighting the impressive acceleration capabilities of both vehicles.

Top Speed (electronically limited): Both cars are electronically limited to a top speed of 155 mph. However, with the optional Dynamic Package, this limit can be raised to 190 mph, unlocking even greater performance potential.

Curb Weight (approximate): The RS7 is slightly lighter than the RS6, with an approximate curb weight of 4,927 lbs compared to the RS6's 4,960 lbs. This weight difference, although minimal, can contribute to a slight performance advantage for the RS7.

Body Style: The RS6 is a wagon/estate, while the RS7 is a four-door coupe/sportback. This is the most significant differentiating factor between the two models, influencing their aesthetics, practicality, and to some extent, their handling characteristics.

Drag Coefficient: Due to its more aerodynamic shape, the RS7 generally has a lower drag coefficient than the RS6. This lower drag contributes to slightly better fuel efficiency at high speeds and potentially a marginally higher top speed (if not electronically limited).

Cargo Capacity (Rear Seats Up/Down): The RS6, being a wagon, offers more cargo space than the RS7. The RS6 boasts 30 cubic feet with the rear seats up and 59.3 cubic feet with them folded down, while the RS7 offers 24.9 cubic feet and 54.9 cubic feet, respectively. This makes the RS6 a more practical choice for those who frequently carry large items.

Fuel Economy (EPA Combined): Both the RS6 and RS7 are estimated to achieve 18 mpg combined according to EPA ratings. However, real-world fuel economy can vary depending on driving style and conditions.

Starting Price (approximate): The RS7 typically has a slightly lower starting price than the RS6.

Wheelbase: Both cars share the same wheelbase which is 115.3 inches.

Track Width (Front/Rear): Both cars share the same track width which is 66.1 inches(Front) and 65.4 inches(Rear).

Length: The RS7 is slightly longer than the RS6. The RS6 length is 196.6 inches and RS7 length is 197.2 inches.

Width: The RS7 is slightly wider than the RS6. The RS6 width is 76.3 inches and RS7 width is 76.8 inches.

Height: The RS7 is lower than the RS6. The RS6 height is 58.7 inches and RS7 height is 56.0 inches.

Standard Suspension: Both the RS6 and RS7 come standard with Adaptive Air Suspension. This system allows the vehicle's ride height and damping characteristics to be adjusted based on driving conditions and driver preferences, providing a balance between comfort and performance.

Optional Suspension: Both cars offer an optional RS Sport Suspension Plus with Dynamic Ride Control (DRC). This advanced suspension system uses diagonally linked dampers to minimize body roll during cornering, further enhancing handling and stability.

Braking System: Both models come standard with steel brakes, offering excellent stopping power. Carbon-ceramic brakes are available as an option, providing even greater braking performance and resistance to fade, particularly during demanding driving situations.

Turning Circle: Both cars share the same turning circle which is 40.4 feet.

Is One Really Faster?

On paper and in many real-world scenarios, the performance difference between the RS6 and RS7 is negligible. Both cars share the same engine, transmission, and all-wheel-drive system. However, the slightly lower weight and more aerodynamic profile of the RS7 could translate to a marginal advantage in certain situations, such as high-speed runs or track days.

Ultimately, the choice between the RS6 and RS7 often comes down to personal preference regarding body style and practicality. If cargo space is a priority, the RS6 Avant is the clear winner. If a sleek, coupe-like design is more appealing, the RS7 Sportback is the better choice.

Frequently Asked Questions

Which is more practical, the RS6 or RS7? The RS6 is more practical due to its larger cargo capacity, making it better suited for families or those who frequently need to transport large items.

Do both cars have the same engine? Yes, both the RS6 and RS7 are equipped with the same 4.0-liter twin-turbo V8 engine producing 591 horsepower and 590 lb-ft of torque.

Is there a significant performance difference between the two? The performance difference is minimal. The RS7 might have a slight edge due to its lower weight and better aerodynamics, but in most real-world scenarios, they perform similarly.

Are they both all-wheel drive? Yes, both the RS6 and RS7 feature Audi's Quattro all-wheel-drive system, providing excellent traction and stability.

Which one is more expensive? The RS6 typically has a slightly higher starting price than the RS7.

Conclusion

In conclusion, while the Audi RS7 Sportback might possess a marginal performance advantage over the RS6 Avant due to its slightly lower weight and improved aerodynamics, the differences are so minimal that they are unlikely to be noticeable in everyday driving. The decision between the two ultimately boils down to personal preference and practical needs. If you prioritize cargo space and the versatility of a wagon, the RS6 is the better choice. If you prefer the sleek styling of a four-door coupe, the RS7 is the way to go. Both are exceptional high-performance vehicles that deliver a thrilling driving experience.