Porsche Boxster Porsche Boxster 2008 Cadillac CTS Cadillac CTS 2015

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Porsche Boxster vs. Cadillac CTS 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. Cadillac CTS Invoice Comparison

Lowest Total Price: $64,600

Porsche Boxster   
Difference: $8,895

Lowest Total Invoice: $56,037

Porsche Boxster   
Difference: $12,914

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820082015
ModelBoxsterBoxsterCTS
TrimBaseSCTS-V
Body2dr Convertible2dr Convertible2dr Coupe
Base Price $45,800 $55,700 $69,900
Base Invoice $39,923 $43,512 $65,356
Adaptive Sports Seats 3,055 3,055  
Sport Chrono Package 920 920  
Adaptive dampers - electrical 1,990 1,990  
Xenon HID headlights 1,090 1,090  
Auto-dimming rearview mirror 690 690  
Metallic paint (extra cost) 690 690  
Synthetic suede steering wheel 1,105 1,105  
Wood trim 890 890  
Obstacle detection, rear 530 530  
Heated front seats 480 480  
Audio controls on steering wheel 990 990  
Navigation system 3,110 3,110  
Floor mats 115 115  
Automatic climate control, front 550 550  
Upholstered instrument panel, leather 1,735 1,735  
Adaptive Sports Seats 2,597 2,597  
Sport Chrono Package 782 782  
Adaptive dampers - electrical 1,692 1,692  
Xenon HID headlights 927 927  
Auto-dimming rearview mirror 587 587  
Metallic paint (extra cost) 587 587  
Synthetic suede steering wheel 939 939  
Wood trim 757 757  
Obstacle detection, rear 451 451  
Heated front seats 408 408  
Audio controls on steering wheel 842 842  
Navigation system 2,644 2,644  
Floor mats 98 98  
Automatic climate control, front 468 468  
Upholstered instrument panel, leather 1,475 1,475  
Options (change) 17,940 17,940 0
Options (change) 15,254 15,254 0
Destination 860 860 995
Gas Tax 0 0 2,600
Total Price $64,600 $74,500 $73,495
Total Invoice $56,037 $59,626 $68,951

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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 Porsche Boxster dealer quotes or Cadillac CTS dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Porsche Boxster vs. Cadillac CTS

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $8,785
TrueDelta Adjusted Invoice Difference: $12,811
Model Year200820082015
ModelBoxsterBoxsterCTS
TrimBaseSCTS-V
Body2dr Convertible2dr Convertible2dr Coupe
Engine245hp H6295hp H6556hp V8
TransmissionM5M6T6
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)50, 4230, 7300, 10
Tire (rear if not all the same)205/55-17235/40-18255/40-19
Total Price$64,600$74,500$73,495
Adjustments for Features0-150-110
Feature-Adjusted Total Price$64,600$74,350$73,385
Cost Above Minimum$0$9,750$0
Total Invoice$56,037$59,626$68,951
Adjustments for Features0-120-103
Feature-Adjusted Total Invoice$56,037$59,506$68,848
Cost Above Minimum$0$3,469$0

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Features Comparison: Porsche Boxster vs. Cadillac CTS

Model Year200820082015
ModelBoxsterBoxsterCTS
TrimBaseSCTS-V
Body2dr Convertible2dr Convertible2dr Coupe
Transmission and Drivetrain 
5-speed manual$0  
6-speed manual $150 
6-speed manually-shiftable automatic  $1100
RWD$0$0$0
Accessories 
Proximity key  $250
Remote app  $25
Remote start  $150
Tilt/telescoping steering wheel, manual$250$250 
Tilt/telescoping steering wheel, power  $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats  $0
Blind spot warning system  $200
Brake assist  $50
Rearview camera  $200
Roll bar$200$200 
Rollover sensor  $50
Side curtain airbags  $350
Tires, run-flat  $150
Vehicle health reports  $0
Cargo Management 
Second-row low console  $100
Climate Control 
Automatic air recirculation  $100
Dual-zone climate control  $125
Heated windshield washer nozzles$15$15 
Rear air vents  $100
Water-repellent front-door glass$15$15 
Drivetrain 
Limited-slip rear differential  $300
Engine / Motor 
Mid-engine configuration$0$0 
Exterior 
Black grille (optional)  $0
Body kit  $0
Painted brake calipers (optional)  $0
Power convertible top$4000$4000 
Retractable rear spoiler$400$400 
Infotainment 
Aux input  $50
Bluetooth cell phone link  $100
DVD-compatible player  $0
Media drive  $15
MP3-compatible player  $50
Satellite radio  $200
Surround sound  $250
Telematics service, such as OnStar, with navigation  $225
Traffic information  $25
USB port  $25
Voice control for nav and audio  $100
Wireless charging station  $75
Instruments, Lights, and Mirrors 
Approach detection  $25
Auto-dimming driver-side mirror$75$75 
Auto-dimming passenger-side mirror$75$75 
Automatic headlights  $125
Boost gauge  $75
Chronometer$100$100 
Compass  $0
Fog light, rear$100$100 
Steering-linked headlights  $150
Seats and Interior Trim 
Center armrest(s), second row  $50
Cooled or ventilated front seats  $300
Folding second row seats  $300
Leather door panel trim$250$250 
Manual thigh support length adjuster, driver seat  $50
Manual thigh support length adjuster, passenger seat  $50
No leather in second row$-300$-300 
Power 4-way lumbar adjuster, driver seat$150$150 
Power lumbar adjuster, driver seat  $100
Power lumbar adjuster, passenger seat  $100
Synthetic suede inserts in leather seating surfaces  $0
Upholstered instrument panel  $300
Upholstered instrument panel, leather$1000$1000 
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade)  $0
Transmission 
Steering-wheel-mounted transmission controls  $100
Total Value of Features$6,330$6,480$6,440
Value of Feature Adjustments$0$150$110
Value of Feature Adjustments0-120-103

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Specifications Comparison: Porsche Boxster vs. Cadillac CTS

Model Year20082015
ModelBoxsterCTS
Body2dr Convertible2dr Coupe
Wheelbase95.1 in113.4 in
Length170.4 in188.5 in
Width70.9 in74.1 in
Height51.0 in55.9 in
Curb Weight2,856 lb.4,218 lb.
Fuel Capacity17.0 gal.18.0 gal.
Row 1 Headroom38.4 in36.9 in
Row 1 Shoulder Room51.7 in56.0 in
Row 1 Hip Room53.4 in54.5 in
Row 1 Legroom41.6 in42.4 in
Row 2 Headroom0.0 in34.6 in
Row 2 Shoulder Room0.0 in50.9 in
Row 2 Hip Room0.0 in47.7 in
Row 2 Legroom0.0 in35.0 in
Cargo Volume9.9 ft310.5 ft3

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Option Package Details
Porsche Boxster

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100Yes
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100Yes
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 seat150No
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested120089%
Total Not Requested15011%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%

Option Package Details
Porsche Boxster S

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100Yes
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100Yes
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 seat150No
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested120089%
Total Not Requested15011%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%

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