BMW 6-Series Gran Coupe BMW 6-Series Gran Coupe 2014 Porsche Boxster Porsche Boxster 2015

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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: $94,025

Porsche Boxster S   
Difference: $35,950

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  Down Payment Interest Rate Term
Model Year20142015
Model6-Series Gran CoupeBoxster
TrimM6S
Body4dr Sedan2dr Convertible
Base Price $115,000 $63,300
Upholstered instrument panel, leather 3,500 2,160
Wood trim 0 1,790
Ceramic brake rotors 9,250 7,400
Torque vectoring, brake-based   1,320
Adaptive dampers - electrical   1,790
Infotainment Package   3,990
Bose 505W 10 speakers   0
Adaptive sport seats plus   3,825
Premium Package Plus   2,950
6-speed manual   0
Illuminated door sill trim plates   825
Audio controls on steering wheel   615
Rearview camera   1,515
Voice control for nav and audio   520
Power-folding mirrors   320
Metallic paint (extra cost)   710
Upholstered instrument panel, leather 3,185 0
Wood trim 0 0
Ceramic brake rotors 8,420 0
Torque vectoring, brake-based   0
Adaptive dampers - electrical   0
Infotainment Package   0
Bose 505W 10 speakers   0
Adaptive sport seats plus   0
Premium Package Plus   0
6-speed manual   0
Illuminated door sill trim plates   0
Audio controls on steering wheel   0
Rearview camera   0
Voice control for nav and audio   0
Power-folding mirrors   0
Metallic paint (extra cost)   0
Options (change) 12,750 29,730
Options (change) 11,605 0
Destination 925 995
Gas Tax 1,300 0
Total Price $129,975 $94,025

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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: $36,000
TrueDelta Adjusted Invoice Difference: $118,816
Model Year20142015
Model6-Series Gran CoupeBoxster
TrimM6S
Body4dr Sedan2dr Convertible
Engine560hp V8315hp H6
TransmissionS7M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)14/20 MPG20/28 MPG
Audio (watts, speakers)500, 12445, 10
Tire (rear if not all the same)265/35-20235/40-19
Total Price$129,975$94,025
Adjustments for Features0-50
Feature-Adjusted Total Price$129,975$93,975

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

Model Year20142015
Model6-Series Gran CoupeBoxster
TrimM6S
Body4dr Sedan2dr Convertible
Transmission and Drivetrain 
7-speed automated manual$1200 
6-speed manual $150
RWD$0$0
Accessories 
Power door closers$300 
Power rear side windows$200 
Remote app$25 
Remote window/roof operation$15 
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Roll bar $200
Torque vectoring, brake-based $100
Cargo Management 
Cargo mat$40 
Cargo net $40
Rear seat pass-through$100 
Ski sack$50 
Climate Control 
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Water-repellent front-door glass $15
Drivetrain 
Active rear differential$500 
Limited-slip rear differential $300
Engine / Motor 
Mid-engine configuration $0
Exterior 
Carbon fiber body panels$250 
Power convertible top $4000
Retractable rear spoiler $400
Infotainment 
Concierge Services - 3 year subscription$150 
DVD-Audio-compatible player $0
DVD-compatible player$0 
In-vehicle Internet$150 
Off-road navigation system $0
S Voice support$0 
Satellite radio $200
Satellite radio - one year subscription$250 
Siri Eyes Free support$0 
SMS text-to-speech reader$25 
Telematics service, such as OnStar$200 
Text dictation$50 
Traffic + travel information$25 
Traffic information $25
Voice control for external devices$0 
Instruments, Lights, and Mirrors 
Cornering lights$50 
Fog light, rear $100
Mirror tilt-down in reverse$25 
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Center armrest(s), second row$50 
Cooled or ventilated front seats $300
Folding second row seats$300 
Memory system, passenger seat$150 
Metal pedals $75
No leather in second row $-300
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 upper seatback recliner, driver seat$100 
Power upper seatback recliner, passenger seat$100 
Synthetic suede headliner$650 
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200 
Sport suspension (upgrade)$0 
Transmission 
Launch control$100 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$5,855$5,905
Value of Feature Adjustments$0$50
Value of Feature Adjustments0-1

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

Model Year20142015
Model6-Series Gran CoupeBoxster
Body4dr Sedan2dr Convertible
Wheelbase116.9 in97.4 in
Length197.2 in172.2 in
Width74.6 in70.9 in
Height54.8 in50.5 in
Curb Weight4,430 lb.2,910 lb.
Fuel Capacity18.5 gal.16.9 gal.
Row 1 Headroom40.6 in38.6 in
Row 1 Shoulder Room56.7 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom42.1 in42.6 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

Torque vectoring / active trace control
FeatureValueRequested?
Torque vectoring / active trace control100No
Limited-slip rear differential300Yes
Total Requested30075%
Total Not Requested10025%
Bose, 445W, 10 speakers (with subwoofer)
FeatureValueRequested?
Bose, 445W, 10 speakers (with subwoofer)350No
Surround sound250Yes
Total Requested25042%
Total Not Requested35058%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather800Yes
Leather upholstery, extended coverage0No
Total Requested800100%
Total Not Requested00%
Rearview camera
FeatureValueRequested?
Rearview camera200Yes
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Total Requested600100%
Total Not Requested00%
Infotainment Package
FeatureValueRequested?
Satellite radio200Yes
DVD-Audio-compatible player0Yes
HD radio50Yes
USB port25Yes
Navigation system600Yes
Traffic information25Yes
Off-road navigation system0No
Media drive15Yes
App support0Yes
Total Requested915100%
Total Not Requested00%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Power thigh support adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Front sport buckets100Yes
Total Requested160089%
Total Not Requested20011%
Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300No
Proximity key250Yes
Interior ambient lighting150Yes
Automatic climate control, front200Yes
Heated front seats200Yes
Dual-zone climate control125Yes
Residual heat50Yes
Automatic air recirculation100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested167585%
Total Not Requested30015%

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