Porsche Cayman Porsche Cayman 2006 BMW 6-Series Gran Coupe BMW 6-Series Gran Coupe 2014

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Porsche Cayman vs. BMW 6-Series Gran Coupe 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.

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

Lowest Total Price: $0

Porsche Cayman S   
Difference: $78,525

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006201420142014
ModelCayman6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe
TrimS640i650iM6
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Base Price $0 $77,600 $88,900 $115,000
Navigation system 0      
Adaptive dampers - electrical 0      
Power seatback bolsters, driver seat 0      
Front sport buckets 0      
Wood trim       0
Navigation system 0      
Adaptive dampers - electrical 0      
Power seatback bolsters, driver seat 0      
Front sport buckets 0      
Wood trim       0
Options (change) 0 0 0 0
Options (change) 0 0 0 0
Destination 0 925 925 925
Gas Tax 0 0 0 1,300
Total Price $0 $78,525 $89,825 $117,225

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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: Porsche Cayman vs. BMW 6-Series Gran Coupe

Lowest Adjusted Price and Invoice: Porsche Cayman S
TrueDelta Adjusted Price Difference: $63,390
TrueDelta Adjusted Invoice Difference: $58,522
Model Year2006201420142014
ModelCayman6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe
TrimS640i650iM6
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Engine295hp H6315hp I6445hp V8560hp V8
TransmissionM6T8T8S7
DrivetrainRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)230, 7205, 9500, 12500, 12
Tire (rear if not all the same)235/40-18245/45-18245/40-19265/35-20
Total Price$0$78,525$89,825$117,225
Adjustments for Features0-15,135-16,285-17,085
Feature-Adjusted Total Price$0$63,390$73,540$100,140
Cost Above Minimum$0$0$10,150$36,750

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Features Comparison: Porsche Cayman vs. BMW 6-Series Gran Coupe

Model Year2006201420142014
ModelCayman6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe
TrimS640i650iM6
Body2dr Hatch4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150   
8-speed manually-shiftable automatic $1300$1300 
7-speed automated manual   $1200
RWD$0$0$0$0
Accessories 
Cruise control $150$150$150
Power door closers   $300
Power front side windows $250$250$250
Power locks $275$275$275
Power rear side windows $200$200$200
Proximity key $250$250$250
Remote app $25$25$25
Remote keyless entry $225$225$225
Remote window/roof operation $15$15$15
Tilt/telescoping steering wheel, power $350$350$350
Universal garage door opener $100$100$100
Brakes, Airbags, and Other Safety 
4-wheel disc brakes $150$150$150
Active or whiplash-reducing head restraints, front seats $0$0$0
Antilock brakes (ABS) $400$400$400
Brake assist $50$50$50
Front side airbags $350$350$350
Knee airbag, driver $75$75$75
Knee airbag, passenger $75$75$75
Obstacle detection, front $150$150$150
Obstacle detection, rear $250$250$250
Rearview camera $200$200$200
Side curtain airbags $350$350$350
Stability control $400$400$400
Tire-pressure monitor $75$75$75
Tires, run-flat $150$150 
Traction control $100$100$100
Cargo Management 
Cargo mat $40$40$40
Console with shifter $150$150$150
Rear seat pass-through $100$100$100
Ski sack $50$50$50
Climate Control 
Air conditioning $900$900$900
Automatic climate control, front $200$200$200
Dual-zone climate control $125$125$125
Heated windshield washer nozzles $15$15$15
Interior air filter $0$0$0
Rain-sensing wipers $175$175$175
Rear air vents with automatic controls   $250
Rear air vents with manual controls $150$150 
Rear defrost $200$200$200
Rear dual-zone climate control   $125
Residual heat $50$50$50
Drivetrain 
Active rear differential   $500
Engine / Motor 
Automatic start / stop $150$150$150
Mid-engine configuration$0   
Regenerative braking $0$0$0
Exterior 
Bright-finished exhaust tip(s) $25$25$25
Carbon fiber body panels   $250
Painted brake calipers (optional)   $0
Power-venting glass roof panel $300$300 
Infotainment 
App support $0$0$0
Audio controls on steering wheel $125$125$125
Aux input $50$50$50
Bluetooth audio streaming $25$25$25
Bluetooth cell phone link $100$100$100
CD player $125$125$125
Concierge Services - 3 year subscription  $150$150
DVD-compatible player $0$0$0
HD radio $50$50$50
In-vehicle Internet $150$150$150
Media drive $15$15$15
MP3-compatible player $50$50$50
S Voice support $0$0$0
Satellite radio $200$200$200
Siri Eyes Free support $0$0$0
SMS text-to-speech reader $25$25$25
Surround sound  $250$250
Telematics service, such as OnStar $200$200$200
Text dictation $50$50$50
Traffic + travel information $25$25$25
Voice control for external devices $0$0$0
Voice control for nav and audio $100$100$100
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75$75$75
Auto-dimming passenger-side mirror $75$75$75
Auto-dimming rearview mirror $150$150$150
Automatic headlights $125$125$125
Cornering lights $50$50$50
Fog lights $125$125 
Headlight washers $50$50$50
Heated mirrors $25$25$25
Illuminated visor mirror, driver $50$50$50
Illuminated visor mirror, passenger $50$50$50
Mirror tilt-down in reverse $25$25$25
Outside temperature display $50$50$50
Power mirrors $150$150$150
Power-folding mirrors $50$50$50
Steering-linked headlights $150$150$150
Tachometer $75$75$75
Trip computer $150$150$150
Turn signals on or near mirrors $25$25$25
Xenon HID headlights $500$500$500
Seats and Interior Trim 
Center armrest(s), front row $75$75$75
Center armrest(s), second row $50$50$50
Floor mats $75$75$75
Folding second row seats $300$300$300
Heated front seats $200$200$200
Illuminated door sill trim plates   $200
Leather-wrapped steering wheel $150$150$150
Memory system, driver seat $200$200$200
Memory system, passenger seat  $150$150
Power 4-way lumbar adjuster, driver seat $150$150$150
Power 4-way lumbar adjuster, passenger seat $150$150$150
Power fore-aft adjuster, driver seat $100$100$100
Power fore-aft adjuster, passenger seat $100$100$100
Power headrest height adjuster, driver seat $50$50$50
Power headrest height adjuster, passenger seat $50$50$50
Power height adjuster, driver seat $100$100$100
Power height adjuster, passenger seat $100$100$100
Power recliner, driver seat $100$100$100
Power recliner, passenger seat $100$100$100
Power seatback bolsters, driver seat$100 $100$100
Power seatback bolsters, passenger seat  $100$100
Power thigh support length adjuster, driver seat  $100$100
Power thigh support length adjuster, passenger seat  $100$100
Power tilt adjuster, driver seat $100$100$100
Power tilt adjuster, passenger seat $100$100$100
Power upper seatback recliner, driver seat  $100$100
Power upper seatback recliner, passenger seat  $100$100
Upholstered instrument panel $300$300$300
Wood trim $300$300$300
Suspension, Wheels, and Tires 
Alloy wheels $350$350$350
Electronic systems calibration selector $200$200$200
Sport suspension (upgrade)   $0
Transmission 
Launch control $100$100$100
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$250$15,385$16,535$17,335
Value of Feature Adjustments$0$15,135$16,285$17,085
Value of Feature Adjustments0-13,973-15,029-15,770

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Specifications Comparison: Porsche Cayman vs. BMW 6-Series Gran Coupe

Model Year20062014
ModelCayman6-Series Gran Coupe
Body2dr Hatch4dr Sedan
Wheelbase95.1 in116.9 in
Length170.9 in197.2 in
Width70.9 in74.6 in
Height51.4 in54.8 in
Curb Weight2,966 lb.4,192 lb.
Fuel Capacity17.0 gal.18.5 gal.
Row 1 Headroom0.0 in40.6 in
Row 1 Shoulder Room0.0 in56.7 in
Row 1 Legroom0.0 in42.1 in
Row 2 Headroom0.0 in37.0 in
Row 2 Shoulder Room0.0 in54.6 in
Row 2 Legroom0.0 in35.3 in
Cargo Volume14.5 ft316.2 ft3

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