BMW 6-Series Gran Coupe BMW 6-Series Gran Coupe 2013 Porsche Boxster Porsche Boxster 2008

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

Lowest Total Price: $76,975

Porsche Boxster S   
Difference: $12,620

Lowest Total Invoice: $61,730

Porsche Boxster S   
Difference: $20,935

Calculate Payments

  Down Payment Interest Rate Term
Model Year20132008
Model6-Series Gran CoupeBoxster
Trim650iS
Body4dr Sedan2dr Convertible
Base Price $87,200 $55,700
Base Invoice $80,405 $43,512
Upholstered instrument panel, leather 1,500 1,735
Sport Chrono Package   920
Adaptive dampers - electrical   1,990
Adaptive Sports Seats   3,055
Auto-dimming rearview mirror   690
Xenon HID headlights   1,090
Metallic paint (extra cost)   690
Floor mats   115
Heated front seats   480
Obstacle detection, rear   530
Automatic climate control, front   550
Wood trim   890
Carbon fiber / leather-wrapped steering wheel   1,360
Navigation system   3,110
5-speed shiftable automatic   3,210
Upholstered instrument panel, leather 1,365 1,475
Sport Chrono Package   782
Adaptive dampers - electrical   1,692
Adaptive Sports Seats   2,597
Auto-dimming rearview mirror   587
Xenon HID headlights   927
Metallic paint (extra cost)   587
Floor mats   98
Heated front seats   408
Obstacle detection, rear   451
Automatic climate control, front   468
Wood trim   757
Carbon fiber / leather-wrapped steering wheel   1,156
Navigation system   2,644
5-speed shiftable automatic   2,729
Options (change) 1,500 20,415
Options (change) 1,365 17,358
Destination 895 860
Total Price $89,595 $76,975
Total Invoice $82,665 $61,730

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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 6-Series Gran Coupe dealer quotes or Porsche Boxster dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $12,305
TrueDelta Adjusted Invoice Difference: $20,644
Model Year20132008
Model6-Series Gran CoupeBoxster
Trim650iS
Body4dr Sedan2dr Convertible
Engine445hp V8295hp H6
TransmissionT8T5
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)17/25 MPG18/25 MPG
Audio (watts, speakers)205, 9230, 7
Tire (rear if not all the same)245/40-19235/40-18
Total Price$89,595$76,975
Adjustments for Features-3150
Feature-Adjusted Total Price$89,280$76,975
Total Invoice$82,665$61,730
Adjustments for Features-2910
Feature-Adjusted Total Invoice$82,374$61,730

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

Model Year20132008
Model6-Series Gran CoupeBoxster
Trim650iS
Body4dr Sedan2dr Convertible
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
5-speed manually-shiftable automatic $1000
RWD$0$0
Accessories 
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 
Tires, run-flat$150 
Cargo Management 
Cargo mat$40 
Cargo net $40
Climate Control 
Automatic air recirculation$100 
Dual-zone climate control$125 
Rear air vents with manual controls$150 
Residual heat$50 
Water-repellent front-door glass $15
Engine / Motor 
Automatic start / stop$150 
Mid-engine configuration $0
Regenerative braking$0 
Exterior 
Power convertible top $4000
Power-venting glass roof panel$300 
Retractable rear spoiler $400
Infotainment 
Aux input$50 
Bluetooth audio streaming$25 
Bluetooth cell phone link$100 
DVD-compatible player$0 
HD radio$50 
Media drive$15 
MP3-compatible player$50 
SMS text-to-speech reader$25 
Telematics service, such as OnStar$200 
Traffic 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
Cornering lights$50 
Fog light, rear $100
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Steering-linked headlights$150 
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel $150
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 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$6,545$6,230
Value of Feature Adjustments$315$0
Value of Feature Adjustments-2910

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

Model Year20132008
Model6-Series Gran CoupeBoxster
Body4dr Sedan2dr Convertible
Wheelbase116.9 in95.1 in
Length197.2 in170.4 in
Width74.6 in70.9 in
Height54.8 in51.0 in
Curb Weight4,430 lb.3,053 lb.
Fuel Capacity18.5 gal.17.0 gal.
Row 1 Headroom40.6 in38.4 in
Row 1 Shoulder Room56.7 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom42.1 in41.6 in
Row 2 Headroom37.0 in0.0 in
Row 2 Shoulder Room54.6 in0.0 in
Row 2 Legroom35.3 in0.0 in
Cargo Volume16.2 ft39.9 ft3

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Option Package Details
Porsche Boxster 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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