Used 2018 Audi S8 Sedan 4D
Pricing
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Values and Prices
Fair Purchase Price is determined by collecting thousands of actual consumer vehicle purchase prices, plus data from national vehicle registration databases and several other reliable third-party sources.
Estimated Values
Condition | Trade-In Value | Private Party Value | ||
|---|---|---|---|---|
Excellent | $30,500 | $32,500 | ||
Very Good | $29,700 | $31,600 | ||
Good | $28,700 | $30,600 | ||
Fair | $26,300 | $28,000 |
Estimated Trade-In Values for the 2018 Audi S8 Sedan 4D range from about $26,300 to $30,500 depending on vehicle condition. Estimated Private Party Values range from about $28,000 to $32,500 depending on vehicle condition. Valid for ZIP Code 43085 through 3/7/2026.
2018 Audi S8 Sedan 4D Depreciation
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2018 Audi S8 Sedan 4D Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $11,847 | $60,668 | $55,703 | ||
2024 | $20,425 | $40,243 | $34,648 | ||
2025 | $3,288 | $36,955 | $31,557 | ||
Now | $6,355 | $30,600 | $28,700 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2018 Audi S8 Sedan 4D Depreciation
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 4685 lbs. | ||
|---|---|---|---|
Fuel Capacity | 21.7 gallons | ||
Front Head Room | 37.2 inches | ||
Front Leg Room | 41.4 inches | ||
Max Seating Capacity | 5 | ||
Overall Length | 202.6 inches | ||
Front Shoulder Room | 59.1 inches | ||
Trunk or Cargo Capacity | 14.2 cu.ft. | ||
Turning Diameter | 40.4 feet | ||
Wheel Base | 117.9 inches | ||
Width with mirrors | 83.1 inches |
Exterior
Alloy Wheels | Available | ||
|---|---|---|---|
Fog Lights | Available | ||
Moon Roof/Sun Roof | Available | ||
Number of Doors | 4 doors | ||
Power Folding Exterior Mirrors | Available | ||
LED Headlights | Available | ||
Rear Spoiler | Available |
Fuel Economy
City | 14 mpg | ||
|---|---|---|---|
Highway | 24 mpg | ||
Combined | 18 mpg |
Mechanical
Drivetrain | AWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
8 speed | Available | ||
Recommended Fuel | Premium |
Performance
Horsepower | 605 @ 6100 RPM | ||
|---|---|---|---|
Torque | 517 @ 1750 rpm | ||
Engine | V8, Twin Turbo, 4.0 Liter | ||
0 to 60 | 3.7 seconds | ||
Top Speed | 155 mph |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
2018 Audi S8 Sedan 4D Standard Features
2018 Audi S8
KBB.com Review
Kbb.com Expert Rating
If you desire an executive sedan that is just different enough to spark interest yet comes from a brand whose luxury credentials need no explaining, the 2018 Audi A8 satisfies. If you want that in a high-end sedan with thrilling power and performance, look to the souped-up S8 variant.
If you can wait for the 2019 Audi A8, you’ll get an even more advanced vehicle. Otherwise, the Mercedes-Benz S-Class and BMW 7 Series are fresher flagships, while an all-new Lexus LS is around the corner. If you want CarPlay or Android Auto, wait or look elsewhere.
2018 Audi S8
KBB.com Consumer Reviews
Consumer Rating
2018 Audi S8 Sedan 4D Safety
Safety Features & Technology
Compare to Similar Vehicles
Used 2018 Audi S8 Sedan 4D |  New 2026 Honda Civic Hybrid |  New 2026 Hyundai Elantra |  Used 2020 Volvo S90 | ||
|---|---|---|---|---|---|
| Price | $33,000 | $30,590 | $30,645 | $28,000 | |
| KBB.com Rating | 3.9 | 4.7 | N/A | 4.0 | |
| Consumer Rating | 5.0 | 3.8 | 4.1 | 4.6 | |
| Fuel Economy | City 14/Hwy 24/Comb 18 MPG | City 50/Hwy 47/Comb 49 MPG | City 28/Hwy 35/Comb 31 MPG | City 0/Hwy 0/Comb 30 MPG | City 0/Hwy 0/Comb 60 MPGe | |
| Fuel Type | Gas | Hybrid | Gas | Hybrid | |
| Safety Rating | N/A | N/A | 5.0 | N/A | |
| Seating Capacity | 5 | 5 | 5 | 5 | |
| Basic Warranty | 4 years or 50000 miles | 3 years or 36000 miles | 5 years or 60000 miles | 4 years or 50000 miles | |
| Horsepower | 605 @ 6100 RPM | 181 @ 6000 RPM | 201 @ 6000 RPM | 400 @ 6000 RPM | |
| Engine | V8, Twin Turbo, 4.0 Liter | 4-Cyl, Hybrid, i-VTEC, 2.0 Liter | 4-Cyl, Turbo, GDI, 1.6 Liter | 4-Cyl, Drive-E, Turbo, Supercharged, Hybrid, 2.0 Liter | |
| Drivetrain | AWD | FWD | FWD | AWD |