Used 2018 Audi S5 Premium Plus Convertible 2D
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 | $19,700 | $23,320 | ||
Very Good | $19,050 | $22,620 | ||
Good | $18,350 | $21,820 | ||
Fair | $16,600 | $19,720 |
Estimated Trade-In Values for the 2018 Audi S5 Premium Plus Convertible 2D range from about $16,600 to $19,700 depending on vehicle condition. Estimated Private Party Values range from about $19,720 to $23,320 depending on vehicle condition. Valid for ZIP Code 37901 through 10/29/2026.
2018 Audi S5 Premium Plus Convertible 2D Depreciation
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2018 Audi S5 Premium Plus Convertible 2D Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $5,340 | $37,186 | $33,947 | ||
2024 | $10,591 | $26,595 | $23,245 | ||
2025 | $985 | $25,610 | $22,536 | ||
Now | $3,410 | $22,200 | $18,650 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2018 Audi S5 Premium Plus Convertible 2D 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 | 4211 lbs. | ||
|---|---|---|---|
Fuel Capacity | 15.3 gallons | ||
Front Head Room | 40.0 inches | ||
Front Leg Room | 41.3 inches | ||
Max Seating Capacity | 4 | ||
Overall Length | 184.7 inches | ||
Front Shoulder Room | 55.3 inches | ||
Trunk or Cargo Capacity | 9.3 cu.ft. | ||
Turning Diameter | 37.7 feet | ||
Wheel Base | 108.9 inches | ||
Width with mirrors | 79.9 inches |
Exterior
Alloy Wheels | Available | ||
|---|---|---|---|
Fog Lights | Available | ||
Number of Doors | 2 doors | ||
Power Retractable Top | Available | ||
LED Headlights | Available | ||
Rear Spoiler | Available |
Fuel Economy
City | 20 mpg | ||
|---|---|---|---|
Highway | 29 mpg | ||
Combined | 23 mpg |
Mechanical
Drivetrain | AWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
8 speed | Available | ||
Recommended Fuel | Premium |
Performance
Horsepower | 354 @ 5400 RPM | ||
|---|---|---|---|
Torque | 369 @ 1370 rpm | ||
Engine | V6, Turbo, 3.0 Liter | ||
0 to 60 | 4.8 seconds | ||
Top Speed | 155 mph |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
2018 Audi S5 Premium Plus Convertible 2D Standard Features
2018 Audi S5
KBB.com Review
Kbb.com Expert Rating
If you already have your eye on the A5 coupe or convertible — impressive in their own right — but seek a serious bump in power and performance, the 2018 Audi S5 is the logical choice. The S5 is also a powerhouse when it comes to tech and active safety features.
If you’re among the few drivers who still demand a manual transmission, look to the BMW 4 Series. If you want your convertible to have a retractable-hardtop roof instead of fabric, the 4 Series is also the way to go. The Lexus RC and new Infiniti Q60 bring arguably more fluid looks.
2018 Audi S5
KBB.com Consumer Reviews
Consumer Rating
2018 Audi S5 Premium Plus Convertible 2D Safety
Safety Features & Technology
Compare to Similar Vehicles
 Used 2018 Audi S5 Premium Plus Convertible 2D |  Used 2018 MAZDA MX-5 Miata RF |  Used 2018 Honda Civic Type R |  Used 2024 Audi S5 | ||
|---|---|---|---|---|---|
| Price | $24,200 | $20,800 | $29,700 | $40,000 | |
| KBB.com Rating | 4.8 | 4.7 | 4.7 | 4.3 | |
| Consumer Rating | 4.7 | 4.7 | 3.8 | 4.7 | |
| Fuel Economy | City 20/Hwy 29/Comb 23 MPG | City 26/Hwy 33/Comb 29 MPG | City 22/Hwy 28/Comb 25 MPG | City 21/Hwy 29/Comb 24 MPG | |
| Fuel Type | Gas | N/A | N/A | Gas | |
| Seating Capacity | 4 | 2 | 4 | 4 | |
| Basic Warranty | 4 years or 50000 miles | 3 years or 36000 miles | 3 years or 36000 miles | 4 years or 50000 miles | |
| Horsepower | 354 @ 5400 RPM | 155 @ 6000 RPM | 306 @ 6500 RPM | 349 HP | |
| Engine | V6, Turbo, 3.0 Liter | 4-Cyl, 2.0 Liter | 4-Cyl, VTEC, Turbo, 2.0 Liter | V6, Turbo, 3.0 Liter | |
| Drivetrain | AWD | RWD | FWD | AWD |