Audi A8 / S8 Audi A8 / S8 2018 Porsche 718 Cayman Porsche 718 Cayman 2017

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Audi A8 / S8 vs. Porsche 718 Cayman Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Audi A8 / S8 vs. Porsche 718 Cayman Invoice Comparison

Lowest Total Price: $86,315

Porsche 718 Cayman   
Difference: $49,860

Calculate Payments

  Down Payment Interest Rate Term
Model Year201820172017
ModelA8 / S8718 Cayman718 Cayman
TrimS8 PlusBaseS
Body4dr Sedan2dr Hatch2dr Hatch
Base Price $115,900 $53,900 $66,300
Dynamic Package 9,000    
Black Optic Plus Exterior Package 7,500    
Executive Plus Package 2,800    
LED headlights   1,170 1,170
Adaptive cruise control, all-speed   1,670 1,670
Heated steering wheel   470 470
Navigation system   1,730 1,730
Adaptive sport seats plus   3,825 3,825
Premium Package Plus   3,620 3,170
Upholstered instrument panel, leather   2,160 2,160
Dual-mode exhaust, switchable   2,890 2,540
Adaptive dampers - electrical   1,790 1,790
Carbon fiber trim   1,810 1,810
Synthetic suede headliner   1,180 1,180
Power-folding mirrors   320 320
Ceramic brake rotors   7,400 7,400
Blind spot warning system   690 690
Voice control for nav and audio   0 0
Metallic paint (extra cost)   640 640
Dynamic Package 8,370    
Black Optic Plus Exterior Package 6,976    
Executive Plus Package 2,604    
LED headlights   0 0
Adaptive cruise control, all-speed   0 0
Heated steering wheel   0 0
Navigation system   0 0
Adaptive sport seats plus   0 0
Premium Package Plus   0 0
Upholstered instrument panel, leather   0 0
Dual-mode exhaust, switchable   0 0
Adaptive dampers - electrical   0 0
Carbon fiber trim   0 0
Synthetic suede headliner   0 0
Power-folding mirrors   0 0
Ceramic brake rotors   0 0
Blind spot warning system   0 0
Voice control for nav and audio   0 0
Metallic paint (extra cost)   0 0
Options (change) 19,300 31,365 30,565
Options (change) 17,950 0 0
Destination 975 1,050 1,050
Total Price $136,175 $86,315 $97,915

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

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TrueDelta Value Comparison: Audi A8 / S8 vs. Porsche 718 Cayman

Lowest Adjusted Price and Invoice: Porsche 718 Cayman
TrueDelta Adjusted Price Difference: $38,600
TrueDelta Adjusted Invoice Difference: $115,185
Model Year201820172017
ModelA8 / S8718 Cayman718 Cayman
TrimS8 PlusBaseS
Body4dr Sedan2dr Hatch2dr Hatch
Engine605hp V8300hp H4350hp H4
TransmissionT8M6M6
DrivetrainAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)630, 14110, 6110, 6
Tire (rear if not all the same)275/35-21235/45-18235/40-19
Total Price$136,175$86,315$97,915
Adjustments for Features-11,26000
Feature-Adjusted Total Price$124,915$86,315$97,915
Cost Above Minimum$0$0$11,600

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Features Comparison: Audi A8 / S8 vs. Porsche 718 Cayman

Model Year201820172017
ModelA8 / S8718 Cayman718 Cayman
TrimS8 PlusBaseS
Body4dr Sedan2dr Hatch2dr Hatch
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300  
6-speed manual $150$150
AWD$1700  
RWD $0$0
Accessories 
Active noise reduction$0  
Hands-free trunk or liftgate$100  
Power door closers$300  
Power rear side windows$200  
Power trunk closer$350  
Remote window/roof operation$15  
Sunshade, rear, power$225  
Sunshades, second row, power$225  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0  
Around view cameras$500  
Automatic braking, high-speed or partial $200$200
Automatic braking, low-speed$200  
Collision preparation system, rear$100  
Full-size spare tire$225  
Lane departure prevention, steering-based$200  
Lane departure warning$200  
Rear side airbags$300  
Rearview camera $200$200
Rollover sensor$50  
Wide-view front camera$150  
Wide-view rear camera$0  
Cargo Management 
Air-conditioned storage compartment$50  
Rear seat pass-through$100  
Ski sack$50  
Climate Control 
Rear air vents with automatic controls$250  
Rear dual-zone climate control$125  
Water-repellent front-door glass $15$15
Engine / Motor 
Automatic start / stop $150$150
Mid-engine configuration $0$0
Raised top speed limiter$0  
Regenerative braking $0$0
Exterior 
Black exterior trim (optional)$0  
Black grille (optional)$0  
Body kit$0  
Bright-finished exhaust tip(s) $25$25
Carbon fiber exterior trim (other)$100  
Carbon fiber mirror housings$100  
Carbon fiber rear spoiler$300  
Laminated front side windows$200  
Laminated rear side windows$100  
Painted brake calipers (optional)  $0
Retractable rear spoiler $400$400
Sunroof$900  
Infotainment 
DVD-Audio-compatible player $0$0
DVD-compatible player$0  
In-vehicle Internet$150  
Media drive$15  
Media drive, small $5$5
Off-road navigation system $0$0
Surround sound$250  
Traffic + travel information$25  
Wi-Fi hotspot$50  
Instruments, Lights, and Mirrors 
Analog clock$25  
Compass$0  
Cornering lights$50  
Head-up display (HUD)$350  
Interior ambient lighting $150$150
Interior ambient lighting, configurable$150  
Mirror tilt-down in reverse$25  
Turn signals on or near mirrors$25  
Seats and Interior Trim 
Center armrest(s), second row$50  
Heated second row seats$200  
Massage, driver seat$100  
Massage, passenger seat$100  
Memory system, passenger seat$150  
No leather in second row $-300$-300
Power headrest height adjuster, driver seat$50  
Power headrest height adjuster, passenger seat$50  
Power seat belt height adjusters, front row$25  
Power upper seatback recliner, driver seat$100  
Power upper seatback recliner, passenger seat$100  
Upholstered instrument panel$300  
Upholstered instrument panel, leather $1000$1000
Suspension, Wheels, and Tires 
Active steering$1000  
Air suspension, auto-leveling and height adjustable$1000  
Electronic systems calibration selector$200  
Transmission 
Steering-wheel-mounted transmission controls$100  
Total Value of Features$13,255$1,995$1,995
Value of Feature Adjustments$11,260$0$0
Value of Feature Adjustments-10,47800

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Specifications Comparison: Audi A8 / S8 vs. Porsche 718 Cayman

Model Year20182017
ModelA8 / S8718 Cayman
Body4dr Sedan2dr Hatch
Wheelbase117.8 in97.4 in
Length202.6 in172.4 in
Width76.7 in70.9 in
Height57.4 in51.0 in
Curb Weight4,686 lb.2,945 lb.
Fuel Capacity21.7 gal.14.3 gal.
Row 1 Headroom37.2 in0.0 in
Row 1 Shoulder Room59.1 in0.0 in
Row 1 Legroom41.4 in0.0 in
Row 2 Headroom38.1 in0.0 in
Row 2 Shoulder Room57.8 in0.0 in
Row 2 Legroom38.7 in0.0 in
Cargo Volume14.2 ft315.0 ft3

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Option Package Details
Audi A8 / S8 S8 Plus

Dynamic Package
FeatureValueRequested?
Ceramic brake rotors4000Yes
Raised top speed limiter0No
Total Requested4000100%
Total Not Requested00%
Black Optic Plus Exterior Package
FeatureValueRequested?
Sport exhaust0No
Carbon fiber rear spoiler100No
Carbon fiber exterior trim (other)100No
Carbon fiber mirror housings100No
Black grille (optional)0No
Black exterior trim (optional)0No
Total Requested00%
Total Not Requested300100%
Executive Plus Package
FeatureValueRequested?
Heated second row seats200No
Rear seat pass-through100No
Heated steering wheel100Yes
Ski sack50No
Radar- or camera-based collision preparation system0Yes
Lane departure warning200No
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200No
Forward collision warning200Yes
Lane departure prevention, steering-based200No
Total Requested100051%
Total Not Requested95049%

Option Package Details
Porsche 718 Cayman

LED headlights
FeatureValueRequested?
LED headlights500Yes
Auto-dimming headlights200Yes
Total Requested700100%
Total Not Requested00%
Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Radar- or camera-based collision preparation system0Yes
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Total Requested90082%
Total Not Requested20018%
Heated steering wheel
FeatureValueRequested?
Heated steering wheel100Yes
Audio controls on steering wheel125Yes
Total Requested225100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Handwriting recognition200Yes
Total Requested800100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000No
Leather upholstery, extended coverage0No
Total Requested00%
Total Not Requested1000100%
Dual-mode exhaust, switchable
FeatureValueRequested?
Dual-mode exhaust, switchable500Yes
Sport exhaust0No
Total Requested500100%
Total Not Requested00%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100Yes
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100Yes
Power seatback bolsters, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support length adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support length adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Front sport buckets100Yes
Total Requested1800100%
Total Not Requested00%
Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Proximity key250Yes
Perimeter approach lighting25No
Interior ambient lighting150Yes
Automatic climate control, front200Yes
Heated front seats200Yes
Dual-zone climate control125Yes
Residual heat50Yes
Automatic air recirculation100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested197599%
Total Not Requested251%

Option Package Details
Porsche 718 Cayman S

LED headlights
FeatureValueRequested?
LED headlights500Yes
Auto-dimming headlights200Yes
Total Requested700100%
Total Not Requested00%
Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Radar- or camera-based collision preparation system0Yes
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Total Requested90082%
Total Not Requested20018%
Heated steering wheel
FeatureValueRequested?
Heated steering wheel100Yes
Audio controls on steering wheel125Yes
Total Requested225100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Handwriting recognition200Yes
Total Requested800100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000No
Leather upholstery, extended coverage0No
Total Requested00%
Total Not Requested1000100%
Dual-mode exhaust, switchable
FeatureValueRequested?
Dual-mode exhaust, switchable500Yes
Sport exhaust0No
Total Requested500100%
Total Not Requested00%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100Yes
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100Yes
Power seatback bolsters, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support length adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support length adjuster, driver seat100Yes
Front sport buckets100Yes
Total Requested1800100%
Total Not Requested00%
Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Proximity key250Yes
Perimeter approach lighting25No
Interior ambient lighting150Yes
Automatic air recirculation100Yes
Automatic climate control, front200Yes
Heated front seats200Yes
Dual-zone climate control125Yes
Residual heat50Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Auto-dimming rearview mirror150Yes
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested197599%
Total Not Requested251%

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