BMW i8 BMW i8 2015 Porsche Cayman Porsche Cayman 2008

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BMW i8 vs. Porsche 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.

BMW i8 vs. Porsche Cayman Invoice Comparison

Lowest Total Price: $65,710

Porsche Cayman   
Difference: $69,992

Lowest Total Invoice: $57,073

Porsche Cayman   
Difference: $68,209

Calculate Payments

  Down Payment Interest Rate Term
Model Year201520082008
Modeli8CaymanCayman
TrimBaseBaseS
Body2dr Coupe2dr Hatch2dr Hatch
Base Price $136,500 $49,400 $59,100
Base Invoice $126,260 $43,075 $51,567
Giga World 2,000    
Sport Chrono Package   920 920
Adaptive dampers - electrical   1,990 1,990
Power Seat Package   1,550 1,550
Auto-dimming rearview mirror   690 690
Xenon HID headlights   1,090 1,090
Metallic paint (extra cost)   690 690
Floor mats   115 115
Heated front seats   480 480
Obstacle detection, rear   530 530
Automatic climate control, front   550 550
Voice recorder   650 650
Navigation system   3,110 3,110
Audio controls on steering wheel   990 990
Upholstered instrument panel, leather   2,095 2,095
Giga World 1,820    
Sport Chrono Package   782 782
Adaptive dampers - electrical   1,692 1,692
Power Seat Package   1,318 1,318
Auto-dimming rearview mirror   587 587
Xenon HID headlights   927 927
Metallic paint (extra cost)   587 587
Floor mats   98 98
Heated front seats   408 408
Obstacle detection, rear   451 451
Automatic climate control, front   468 468
Voice recorder   553 553
Navigation system   2,644 2,644
Audio controls on steering wheel   842 842
Upholstered instrument panel, leather   1,781 1,781
Options (change) 2,000 15,450 15,450
Options (change) 1,820 13,138 13,138
Destination 995 860 860
Gas Tax -3,793 0 0
Total Price $135,702 $65,710 $75,410
Total Invoice $125,282 $57,073 $65,565

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

Dealer Price Quotes

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Request free, no-obligation BMW i8 dealer quotes or Porsche Cayman dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: BMW i8 vs. Porsche Cayman

Lowest Adjusted Price and Invoice: Porsche Cayman
TrueDelta Adjusted Price Difference: $62,172
TrueDelta Adjusted Invoice Difference: $60,989
Model Year201520082008
Modeli8CaymanCayman
TrimBaseBaseS
Body2dr Coupe2dr Hatch2dr Hatch
Engine357hp I3 PiH245hp H6295hp H6
TransmissionT6M5M6
DrivetrainAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)360, 1150, 4230, 7
Tire (rear if not all the same)215/45-20205/55-17235/40-18
Total Price$135,702$65,710$75,410
Adjustments for Features-7,8200-150
Feature-Adjusted Total Price$127,882$65,710$75,260
Cost Above Minimum$0$0$9,550
Total Invoice$125,282$57,073$65,565
Adjustments for Features-7,2200-130
Feature-Adjusted Total Invoice$118,062$57,073$65,435
Cost Above Minimum$0$0$8,362

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Features Comparison: BMW i8 vs. Porsche Cayman

Model Year201520082008
Modeli8CaymanCayman
TrimBaseBaseS
Body2dr Coupe2dr Hatch2dr Hatch
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100  
5-speed manual $0 
6-speed manual  $150
AWD$1700  
RWD $0$0
Accessories 
Proximity key$250  
Remote app$25  
Brakes, Airbags, and Other Safety 
Around view cameras$500  
Automatic braking, low-speed$200  
Blind spot warning system$200  
Brake assist$50  
Driver drowsiness monitor$150  
Forward collision warning$200  
Knee airbag, driver$75  
Knee airbag, passenger$75  
Lane departure collision mitigation$50  
Lane departure warning$200  
Obstacle detection, front$150  
Pedestrian detection$50  
Side curtain airbags$350  
Wide-view front camera$150  
Cargo Management 
Cargo net $40$40
Climate Control 
Automatic air recirculation$100  
Dual-zone climate control$125  
Heated windshield washer nozzles $15$15
Rear air vents with manual controls$150  
Residual heat$50  
Water-repellent front-door glass $15$15
Engine / Motor 
3.3 kW onboard charger$0  
7 kWh battery pack$0  
Automatic start / stop$150  
Exterior 
Bright-finished exhaust tip(s) $25$25
Carbon fiber body structure$0  
Retractable rear spoiler $400$400
Infotainment 
App support$0  
Aux input$50  
Bluetooth audio streaming$25  
Bluetooth cell phone link$100  
CD player $125$125
Concierge Services - 3 year subscription$150  
Handwriting recognition$200  
HD radio$50  
In-vehicle Internet$150  
Media drive$15  
S Voice support$0  
Satellite radio - one year subscription$250  
Siri Eyes Free support$0  
SMS text-to-speech reader$25  
Surround sound$250  
Telematics service, such as OnStar$200  
Text dictation$50  
Traffic + travel information$25  
USB port$25  
Voice control for external devices$0  
Voice control for nav and audio$100  
Instruments, Lights, and Mirrors 
Automatic headlights$125  
Chronometer $100$100
Fog light, rear $100$100
Fog lights $125$125
Head-up display (HUD)$350  
Headlight washers $50$50
Interior ambient lighting $150$150
Interior ambient lighting, configurable$150  
Large color reconfigurable instrument cluster display$250  
LED headlights$1000  
Xenon HID headlights $500$500
Seats and Interior Trim 
Door sill trim plates $100$100
Metal pedals $75$75
No leather in second row $-300$-300
Power 4-way lumbar adjuster, driver seat $150$150
Power tilt adjuster, driver seat $100$100
Power tilt adjuster, passenger seat $100$100
Transmission 
Steering-wheel-mounted transmission controls$100  
Total Value of Features$9,690$1,870$2,020
Value of Feature Adjustments$7,820$0$150
Value of Feature Adjustments-7,2200-130

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Specifications Comparison: BMW i8 vs. Porsche Cayman

Model Year20152008
Modeli8Cayman
Body2dr Coupe2dr Hatch
Wheelbase110.2 in95.1 in
Length184.9 in170.9 in
Width76.5 in70.9 in
Height50.8 in51.4 in
Curb Weight3,456 lb.2,966 lb.
Fuel Capacity11.1 gal.17.0 gal.
Row 1 Headroom38.7 in0.0 in
Row 1 Shoulder Room61.1 in0.0 in
Row 2 Headroom32.4 in0.0 in
Row 2 Shoulder Room51.5 in0.0 in
Cargo Volume4.7 ft314.5 ft3

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Option Package Details
Porsche Cayman

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested400100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage-900No
Total Requested10001000%
Total Not Requested-900-900%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
Power Seat Package
FeatureValueRequested?
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100No
Power 4-way lumbar adjuster, driver seat150No
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100No
Total Requested50059%
Total Not Requested35041%

Option Package Details
Porsche Cayman S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested400100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage-900No
Total Requested10001000%
Total Not Requested-900-900%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
Power Seat Package
FeatureValueRequested?
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100No
Power 4-way lumbar adjuster, driver seat150No
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100No
Total Requested50059%
Total Not Requested35041%

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