Porsche Cayman Porsche Cayman 2008 BMW 3-Series Gran Turismo BMW 3-Series Gran Turismo 2018

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Porsche Cayman vs. BMW 3-Series Gran Turismo 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 3-Series Gran Turismo Invoice Comparison

Lowest Total Price: $56,645

BMW 3-Series Gran Turismo 340i   
Difference: $9,085

Lowest Total Invoice: $53,380

BMW 3-Series Gran Turismo 340i   
Difference: $3,709

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082018
ModelCayman3-Series Gran Turismo
TrimBase340i
Body2dr Hatch4dr Hatch
Base Price $49,400 $50,700
Base Invoice $43,075 $47,830
Adaptive Sports Seats 3,055  
Auto-dimming rearview mirror 690  
Sport Chrono Package 920  
Adaptive dampers - electrical 1,990  
Xenon HID headlights 1,090  
Metallic paint (extra cost) 690 550
Wood trim 890  
Automatic climate control, front 550  
Carbon fiber / leather-wrapped steering wheel 1,360  
Floor mats 115  
Heated front seats 480 500
Obstacle detection, rear 530 750
Navigation system 3,110 1,700
Luxury Design   0
Leather seating surfaces   1,450
Adaptive Sports Seats 2,597  
Auto-dimming rearview mirror 587  
Sport Chrono Package 782  
Adaptive dampers - electrical 1,692  
Xenon HID headlights 927  
Metallic paint (extra cost) 587 505
Wood trim 757  
Automatic climate control, front 468  
Carbon fiber / leather-wrapped steering wheel 1,156  
Floor mats 98  
Heated front seats 408 460
Obstacle detection, rear 451 690
Navigation system 2,644 1,565
Luxury Design   0
Leather seating surfaces   1,335
Options (change) 15,470 4,950
Options (change) 13,154 4,555
Destination 860 995
Total Price $65,730 $56,645
Total Invoice $57,089 $53,380

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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 Cayman vs. BMW 3-Series Gran Turismo

Lowest Adjusted Price and Invoice: BMW 3-Series Gran Turismo 340i
TrueDelta Adjusted Price Difference: $18,260
TrueDelta Adjusted Invoice Difference: $12,355
Model Year20082018
ModelCayman3-Series Gran Turismo
TrimBase340i
Body2dr Hatch4dr Hatch
Engine245hp H6320hp I6
TransmissionM5T8
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)20/29 MPG20/30 MPG
Audio (watts, speakers)50, 4600, 16
Tire (rear if not all the same)205/55-17225/45-18
Total Price$65,730$56,645
Adjustments for Features0-9,175
Feature-Adjusted Total Price$65,730$47,470
Total Invoice$57,089$53,380
Adjustments for Features0-8,646
Feature-Adjusted Total Invoice$57,089$44,734

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Features Comparison: Porsche Cayman vs. BMW 3-Series Gran Turismo

Model Year20082018
ModelCayman3-Series Gran Turismo
TrimBase340i
Body2dr Hatch4dr Hatch
Transmission and Drivetrain 
5-speed manual$0 
8-speed manually-shiftable automatic $1300
RWD$0 
AWD $1700
Accessories 
Hands-free trunk or liftgate $100
Power liftgate $350
Power rear side windows $200
Proximity key $250
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Brake assist $50
Hill descent control $250
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, front $150
Rearview camera $200
Side curtain airbags $350
Tires, run-flat $150
Cargo Management 
Air-conditioned storage compartment $50
Cargo area rails w/tie downs $50
Cargo cover $75
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 
Panoramic sunroof $1200
Infotainment 
4G LTE connectivity $0
App support $0
Aux input $50
Bluetooth audio streaming $25
Bluetooth cell phone link $100
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
Surround sound $250
Telematics service, such as OnStar $200
Traffic + travel information $25
USB port $25
Voice control for external devices $0
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Automatic headlights $125
Chronometer$100 
Compass $0
Fog light, rear$100 
Headlight washers$50 
LED headlights $1000
Mirror tilt-down in reverse $25
Power-folding mirrors $50
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 door panel trim$250 
Leather-wrapped steering wheel $150
Manual recliner, second row seats $75
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger seat $50
Metal pedals$75 
No leather in second row$-300 
Power 4-way lumbar adjuster, passenger seat $150
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Transmission 
Launch control $100
Steering-wheel-mounted transmission controls $100
Total Value of Features$1,755$10,930
Value of Feature Adjustments$0$9,175
Value of Feature Adjustments0-8,646

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Specifications Comparison: Porsche Cayman vs. BMW 3-Series Gran Turismo

Model Year20082018
ModelCayman3-Series Gran Turismo
Body2dr Hatch4dr Hatch
Wheelbase95.1 in115.0 in
Length170.9 in190.0 in
Width70.9 in72.0 in
Height51.4 in59.4 in
Curb Weight2,965 lb.4,103 lb.
Fuel Capacity17.0 gal.15.8 gal.
Row 1 Headroom0.0 in41.3 in
Row 1 Shoulder Room0.0 in55.2 in
Row 1 Legroom0.0 in42.0 in
Row 2 Headroom0.0 in38.3 in
Row 2 Shoulder Room0.0 in54.1 in
Row 2 Legroom0.0 in39.2 in
Cargo Volume,
Minimum
14.5 ft318.3 ft3
Cargo Volume,
Behind R2
14.518.4 ft3
Cargo Volume,
Maximum
14.556.5 ft3

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Option Package Details
Porsche Cayman

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 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
Power fore-aft adjuster, driver seat100Yes
Total Requested115085%
Total Not Requested20015%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%

Option Package Details
BMW 3-Series Gran Turismo 340i

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%
Luxury Design
FeatureValueRequested?
Additional chrome trim0No
Bright-finished exhaust tip(s)25Yes
Chrome interior accents (optional)0No
Total Requested25100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
DVD-compatible player0No
Voice control for nav and audio100No
Media drive15No
In-vehicle Internet150No
Handwriting recognition200No
Siri Eyes Free support0No
S Voice support0No
4G LTE connectivity0No
Navigation map updates, three years0No
Navigation system600Yes
Traffic + travel information25No
Remote app25No
Total Requested60054%
Total Not Requested51546%

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