BMW 6-Series BMW 6-Series 2013 Porsche Cayman Porsche Cayman 2008

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BMW 6-Series 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 6-Series vs. Porsche Cayman Invoice Comparison

Lowest Total Price: $69,370

Porsche Cayman   
Difference: $10,725

Lowest Total Invoice: $60,183

Porsche Cayman   
Difference: $13,717

Calculate Payments

  Down Payment Interest Rate Term
Model Year20132013201320082008
Model6-Series6-Series6-SeriesCaymanCayman
Trim640i650iM6BaseS
Body2dr Coupe2dr Coupe2dr Coupe2dr Hatch2dr Hatch
Base Price $74,900 $86,200 $108,350 $49,400 $59,100
Base Invoice $69,090 $79,485 $99,860 $43,075 $51,567
Multicontour seats 1,300        
Upholstered instrument panel, leather 3,000   3,500 1,735 1,735
Leather upholstery, extended coverage   3,500      
Wood trim     0 890 890
Sport Chrono Package       920 920
Adaptive dampers - electrical       1,990 1,990
Adaptive Sports Seats       3,055 3,055
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
Illuminated door sill trim plates       725 725
Carbon fiber / leather-wrapped steering wheel       1,360 1,360
Navigation system       3,110 3,110
Synthetic suede headliner       1,180 1,180
Multicontour seats 1,185        
Upholstered instrument panel, leather 2,730   3,185 1,475 1,475
Leather upholstery, extended coverage   3,185      
Wood trim     0 757 757
Sport Chrono Package       782 782
Adaptive dampers - electrical       1,692 1,692
Adaptive Sports Seats       2,597 2,597
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
Illuminated door sill trim plates       616 616
Carbon fiber / leather-wrapped steering wheel       1,156 1,156
Navigation system       2,644 2,644
Synthetic suede headliner       1,003 1,003
Options (change) 4,300 3,500 3,500 19,110 19,110
Options (change) 3,915 3,185 3,185 16,248 16,248
Destination 895 895 895 860 860
Gas Tax 0 0 1,300 0 0
Total Price $80,095 $90,595 $114,045 $69,370 $79,070
Total Invoice $73,900 $83,565 $105,240 $60,183 $68,675

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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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TrueDelta Value Comparison: BMW 6-Series vs. Porsche Cayman

Lowest Adjusted Price and Invoice: Porsche Cayman
TrueDelta Adjusted Price Difference: $6,360
TrueDelta Adjusted Invoice Difference: $9,690
Model Year20132013201320082008
Model6-Series6-Series6-SeriesCaymanCayman
Trim640i650iM6BaseS
Body2dr Coupe2dr Coupe2dr Coupe2dr Hatch2dr Hatch
Engine315hp I6445hp V8560hp V8245hp H6295hp H6
TransmissionT8T8S7M5M6
DrivetrainRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)205, 9500, 12500, 1650, 4230, 7
Tire (rear if not all the same)245/45-18245/40-19265/40-19205/55-17235/40-18
Total Price$80,095$90,595$114,045$69,370$79,070
Adjustments for Features-4,365-4,615-5,5650-150
Feature-Adjusted Total Price$75,730$85,980$108,480$69,370$78,920
Cost Above Minimum$0$10,250$32,750$0$9,550
Total Invoice$73,900$83,565$105,240$60,183$68,675
Adjustments for Features-4,027-4,257-5,1350-130
Feature-Adjusted Total Invoice$69,873$79,308$100,105$60,183$68,545
Cost Above Minimum$0$9,435$30,232$0$8,362

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Features Comparison: BMW 6-Series vs. Porsche Cayman

Model Year20132013201320082008
Model6-Series6-Series6-SeriesCaymanCayman
Trim640i650iM6BaseS
Body2dr Coupe2dr Coupe2dr Coupe2dr Hatch2dr Hatch
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300   
7-speed automated manual  $1200  
5-speed manual   $0 
6-speed manual    $150
RWD$0$0$0$0$0
Accessories 
Proximity key$250$250$250  
Remote app$25$25$25  
Remote window/roof operation$15$15$15  
Tilt/telescoping steering wheel, manual   $250$250
Tilt/telescoping steering wheel, power$350$350$350  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0$0  
Brake assist$50$50$50  
Knee airbag, driver$75$75$75  
Knee airbag, passenger$75$75$75  
Obstacle detection, front$150$150$150  
Rearview camera$200$200$200  
Side curtain airbags$350$350$350  
Tires, run-flat$150$150   
Cargo Management 
Cargo mat$40$40$40  
Cargo net   $40$40
Rear seat pass-through  $100  
Ski sack  $50  
Climate Control 
Automatic air recirculation$100$100$100  
Dual-zone climate control$125$125$125  
Residual heat$50$50$50  
Water-repellent front-door glass   $15$15
Drivetrain 
Active rear differential  $500  
Engine / Motor 
Automatic start / stop$150$150$150  
Mid-engine configuration   $0$0
Regenerative braking$0$0$0  
Exterior 
Carbon fiber roof  $0  
Painted brake calipers (optional)  $0  
Power-venting glass roof panel$300$300   
Retractable rear spoiler   $400$400
Infotainment 
Aux input$50$50$50  
Bluetooth audio streaming$25$25$25  
Bluetooth cell phone link$100$100$100  
DVD-compatible player$0$0$0  
HD radio$50$50$50  
Media drive$15$15$15  
MP3-compatible player$50$50$50  
Satellite radio - one year subscription$250$250$250  
SMS text-to-speech reader$25$25$25  
Surround sound $250$250  
Telematics service, such as OnStar$200$200$200  
Traffic information$25$25$25  
USB port$25$25$25  
Voice control for external devices$0$0$0  
Voice control for nav and audio$100$100$100  
Instruments, Lights, and Mirrors 
Automatic headlights$125$125$125  
Chronometer   $100$100
Cornering lights$50$50$50  
Fog light, rear   $100$100
Mirror tilt-down in reverse$25$25$25  
Power-folding mirrors$50$50$50  
Steering-linked headlights$150$150$150  
Turn signals on or near mirrors$25$25$25  
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel   $150$150
Door sill trim plates$100$100   
Illuminated door sill trim plates  $200$200$200
Leather-wrapped steering wheel$150$150$150  
Memory system, passenger seat$150$150$150  
Metal pedals   $75$75
No leather in second row   $-300$-300
Power 4-way lumbar adjuster, passenger seat$150$150$150  
Power headrest height adjuster, driver seat$50$50$50  
Power headrest height adjuster, passenger seat$50$50$50  
Power thigh bolsters, driver seat   $100$100
Power thigh bolsters, passenger seat   $100$100
Power thigh support length adjuster, driver seat$100$100$100  
Power thigh support length adjuster, passenger seat$100$100$100  
Power upper seatback recliner, driver seat$100$100$100  
Power upper seatback recliner, passenger seat$100$100$100  
Synthetic suede headliner  $650$650$650
Suspension, Wheels, and Tires 
Sport suspension (upgrade)  $0  
Transmission 
Launch control  $100  
Steering-wheel-mounted transmission controls$100$100$100  
Total Value of Features$6,245$6,495$7,445$1,880$2,030
Value of Feature Adjustments$4,365$4,615$5,565$0$150
Value of Feature Adjustments-4,027-4,257-5,1350-130

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Specifications Comparison: BMW 6-Series vs. Porsche Cayman

Model Year20132008
Model6-SeriesCayman
Body2dr Coupe2dr Hatch
Wheelbase112.4 in95.1 in
Length192.8 in170.9 in
Width74.6 in70.9 in
Height53.9 in51.4 in
Curb Weight4,002 lb.2,966 lb.
Fuel Capacity18.5 gal.17.0 gal.
Row 1 Headroom40.0 in0.0 in
Row 1 Shoulder Room56.9 in0.0 in
Row 1 Legroom42.1 in0.0 in
Row 2 Headroom35.7 in0.0 in
Row 2 Shoulder Room49.7 in0.0 in
Row 2 Legroom30.5 in0.0 in
Cargo Volume16.2 ft314.5 ft3

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Option Package Details
BMW 6-Series 640i

Multicontour seats
FeatureValueRequested?
Power thigh support adjuster, driver seat100No
Power seatback bolsters, driver100Yes
Power upper seatback recliner, driver seat100No
Power thigh support adjuster, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Power upper seatback recliner, passenger seat100No
Memory system, passenger seat150No
Front sport buckets100Yes
Total Requested30035%
Total Not Requested55065%

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 washers50Yes
Total Requested550100%
Total Not Requested00%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
Total Not Requested00%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%

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 washers50Yes
Total Requested550100%
Total Not Requested00%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
Total Not Requested00%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%

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