The 2023 Audi A8 stands as the brand's flagship luxury sedan, blending understated exterior styling with a tech-heavy cabin and robust powertrain options. While competitors like the Mercedes-Benz S-Class lean into overt flashiness, the A8 takes a stealthier approach to executive transport. It relies on a stiff aluminum-space-frame structure, standard quattro all-wheel drive, and sophisticated air suspension systems to deliver a refined ride.
Underneath its subtle sheet metal, this luxury cruiser packs serious capability. Buyers can choose between a smooth turbocharged V6 equipped with mild-hybrid technology or opt for the high-performance S8 variant driven by a twin-turbo V8. This review breaks down what makes the 2023 model tick, examining its engineering, cabin layout, handling dynamics, and real-world trade-offs.
Powertrain Options and Real-World Performance
Performance in the A8 lineup centers on two distinct engine choices, each tuned for a different driving style. The base model, designated as the A8 L 55, utilizes a turbocharged 3.0-liter V6 paired with a 48-volt mild-hybrid system. This setup puts out 335 horsepower and 369 lb-ft of torque, managing turbo lag effectively while getting the heavy sedan from zero to 60 mph in roughly 5.6 seconds.
For drivers seeking genuine muscle, the Audi S8 steps up the formula significantly. It features a twin-turbocharged 4.0-liter V8 pumping out 563 horsepower and 590 lb-ft of torque. That power drops the zero-to-60 mph time to a sports-car-rivaling 3.8 seconds. Both engines route power through a responsive eight-speed automatic transmission that shifts invisibly during normal commuting.
- A8 55 TFSI V6: 335 hp, 369 lb-ft, smooth commuter power with mild-hybrid efficiency.
- S8 Twin-Turbo V8: 563 hp, 590 lb-ft, high-performance luxury with aggressive exhaust notes.
- Transmission: 8-speed Tiptronic automatic standard across all trims.
- Drivetrain: Legendary quattro permanent all-wheel drive for optimal weather grip.
Ride Quality and Suspension Engineering
Handling a vehicle weighing nearly 4,800 pounds requires advanced engineering. The A8 uses a standard adaptive air suspension system that reads the road ahead, automatically adjusting damping stiffness to iron out potholes and imperfections. Body roll is tightly controlled, allowing the large sedan to track stably through sweeping highway curves.
For enhanced agility, models equipped with rear-wheel steering shrink the car's turning circle at low speeds and enhance stability during lane changes on the interstate. The optional predictive active suspension takes things a step further by using electromechanical actuators to raise or lower individual wheels, counteracting dive, squat, and roll to keep passengers upright and isolated from severe road disruptions.
Cabin Comfort and Interior Layout
Inside, the A8 focuses heavily on ergonomic design and quality materials. High-grade Valcona leather, genuine wood inlays, and brushed aluminum accents dominate the cabin. Front seats feature 22-way power adjustments, heating, ventilation, and multiple massage programs.
The long-wheelbase (A8 L) format prioritizes rear passengers, offering limousine-like legroom exceeding 44 inches. Upgrading to the Rear Seat Comfort package adds power-adjustable outboard seats with individual lumbar controls, heating, ventilation, and a removable OLED remote tablet embedded in the center armrest to manage climate and media functions.
Infotainment and Driver Assistance Technology
Audi equips the dashboard with its dual-touchscreen MMI layout. The upper 10.1-inch screen handles navigation and infotainment, while the lower 8.6-inch screen manages climate control and vehicle settings. Haptic feedback gives physical clicks when pressing digital buttons, reducing the need to look away from the road.
Driver assistance features work quietly in the background. Standard equipment includes adaptive cruise control with stop-and-go functionality, lane-keeping assist, front and rear parking sensors, and a 360-degree camera system. While the system handles long highway stretches easily, it doesn't offer completely hands-off capability like some American alternatives.
Common Owner Considerations and Fuel Economy
Living with a flagship German luxury sedan involves specific trade-offs regarding operating costs and packaging.
- Fuel Consumption: The base V6 returns an EPA-estimated 19 mpg city and 28 mpg highway, aided by coasting capabilities in the mild-hybrid system. The S8 drops those figures down to 15 mpg city and 23 mpg highway. Premium fuel is strictly required.
- Cargo Limitations: Trunk space measures 12.5 cubic feet, which trails behind several competitors in this class due to the packaging of rear hybrid and comfort components.
- Depreciation: Like most high-end European sedans, initial depreciation is steep, making well-maintained pre-owned models an attractive value proposition for savvy buyers.
You can explore detailed specifications and historical vehicle data directly on Edmunds or review broader luxury benchmarks via Car and Driver.
Frequently Asked Questions
Does the 2023 Audi A8 come in a diesel engine option?
While global markets receive diesel variants like the 50 TDI, North American models rely exclusively on the turbocharged gasoline V6 and the twin-turbo V8.
Is the Audi A8 available in a standard wheelbase?
In many regions, including North America, Audi sells the vehicle exclusively in the extended A8 L wheelbase configuration to maximize rear passenger legroom.
How does the A8 compare to the Mercedes-Benz S-Class for daily driving?
The A8 tends to feel more neutral and understated, offering a composed ride that doesn't feel overly soft. The S-Class often leans harder into maximalist tech displays and plush isolation, whereas Audi emphasizes a balanced driver engagement profile.
What packages are worth adding to the base A8?
Reviewers consistently recommend the Executive package for upgraded matrix LED headlights and massaging seats, along with the Comfort Plus package for rear-wheel steering and upgraded rear seating adjustments.
