Porsche Boxster Porsche Boxster 2008 BMW 6-Series Gran Coupe BMW 6-Series Gran Coupe 2017

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

Lowest Total Price: $85,390

Porsche Boxster S   
Difference: $47,155

Lowest Total Invoice: $68,883

Porsche Boxster S   
Difference: $55,097

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  Down Payment Interest Rate Term
Model Year20082017
ModelBoxster6-Series Gran Coupe
TrimSM6
Body2dr Convertible4dr Sedan
Base Price $55,700 $117,500
Base Invoice $43,512 $109,955
Adaptive Sports Seats 3,055  
Xenon HID headlights 1,090  
Auto-dimming rearview mirror 690  
Sport Chrono Package 920  
Adaptive dampers - electrical 1,990  
Metallic paint (extra cost) 690  
Wood trim 890 0
Dual-mode exhaust, switchable 2,100  
Carbon fiber / leather-wrapped steering wheel 1,360  
Floor mats 115  
Heated front seats 480  
Obstacle detection, rear 530  
Automatic climate control, front 550  
Voice recorder 650  
Navigation system 3,110  
Upholstered instrument panel, leather 1,735 3,500
Illuminated door sill trim plates 725  
Ceramic brake rotors 8,150 9,250
Adaptive Sports Seats 2,597  
Xenon HID headlights 927  
Auto-dimming rearview mirror 587  
Sport Chrono Package 782  
Adaptive dampers - electrical 1,692  
Metallic paint (extra cost) 587  
Wood trim 757 0
Dual-mode exhaust, switchable 1,785  
Carbon fiber / leather-wrapped steering wheel 1,156  
Floor mats 98  
Heated front seats 408  
Obstacle detection, rear 451  
Automatic climate control, front 468  
Voice recorder 553  
Navigation system 2,644  
Upholstered instrument panel, leather 1,475 3,220
Illuminated door sill trim plates 616  
Ceramic brake rotors 6,928 8,510
Options (change) 28,830 12,750
Options (change) 24,511 11,730
Destination 860 995
Gas Tax 0 1,300
Total Price $85,390 $132,545
Total Invoice $68,883 $123,980

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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: Porsche Boxster vs. BMW 6-Series Gran Coupe

Lowest Adjusted Price and Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $42,815
TrueDelta Adjusted Invoice Difference: $51,037
Model Year20082017
ModelBoxster6-Series Gran Coupe
TrimSM6
Body2dr Convertible4dr Sedan
Engine295hp H6560hp V8
TransmissionM6S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)230, 7205, 9
Tire (rear if not all the same)235/40-18265/35-20
Total Price$85,390$132,545
Adjustments for Features0-4,340
Feature-Adjusted Total Price$85,390$128,205
Total Invoice$68,883$123,980
Adjustments for Features0-4,060
Feature-Adjusted Total Invoice$68,883$119,920

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

Model Year20082017
ModelBoxster6-Series Gran Coupe
TrimSM6
Body2dr Convertible4dr Sedan
Transmission and Drivetrain 
6-speed manual$150 
7-speed automated manual $1200
RWD$0$0
Accessories 
Power door closers $300
Power rear side windows $200
Proximity key $250
Remote app $25
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Brake assist $50
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, front $150
Rearview camera $200
Roll bar$200 
Side curtain airbags $350
Cargo Management 
Cargo mat $40
Cargo net$40 
Rear seat pass-through $100
Ski sack $50
Climate Control 
Automatic air recirculation $100
Dual-zone climate control $125
Rear air vents with automatic controls $250
Rear dual-zone climate control $125
Residual heat $50
Water-repellent front-door glass$15 
Drivetrain 
Active rear differential $500
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration$0 
Regenerative braking $0
Exterior 
Carbon fiber roof $0
Painted brake calipers (optional) $0
Power convertible top$4000 
Retractable rear spoiler$400 
Infotainment 
4G LTE connectivity $0
App support $0
Aux input $50
Bluetooth audio streaming $25
Bluetooth cell phone link $100
Concierge Services - 3 year subscription $150
DVD-compatible player $0
Handwriting recognition $200
HD radio $50
In-vehicle Internet $150
Media drive $15
MP3-compatible player $50
Navigation map updates, three years $0
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
Wi-Fi hotspot $50
Wireless charging station $75
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200
Automatic headlights $125
Chronometer$100 
Cornering lights $50
Fog light, rear$100 
Fog lights$125 
LED headlights $1000
Mirror tilt-down in reverse $25
Power-folding mirrors $50
Steering-linked headlights $150
Turn signals on or near mirrors $25
Xenon HID headlights$500 
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel$150 
Center armrest(s), second row $50
Folding second row seats $300
Leather-wrapped steering wheel $150
Memory system, passenger seat $150
Metal pedals$75 
No leather in second row$-300 
Power 4-way lumbar adjuster, passenger seat $150
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Power thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Power upper seatback recliner, driver seat $100
Power upper seatback recliner, passenger seat $100
Synthetic suede headliner $650
Suspension, Wheels, and Tires 
Sport suspension (upgrade) $0
Transmission 
Launch control $100
Steering-wheel-mounted transmission controls $100
Total Value of Features$6,005$10,345
Value of Feature Adjustments$0$4,340
Value of Feature Adjustments0-4,060

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

Model Year20082017
ModelBoxster6-Series Gran Coupe
Body2dr Convertible4dr Sedan
Wheelbase95.1 in116.9 in
Length170.4 in197.2 in
Width70.9 in74.6 in
Height51.0 in54.8 in
Curb Weight2,856 lb.4,192 lb.
Fuel Capacity17.0 gal.18.5 gal.
Row 1 Headroom38.4 in40.6 in
Row 1 Shoulder Room51.7 in56.7 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 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 Volume9.9 ft316.2 ft3

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Option Package Details
Porsche Boxster S

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, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Total Requested115085%
Total Not Requested20015%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%

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