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Pontiac G8 vs. Porsche Cayman 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.

Pontiac G8 vs. Porsche Cayman Invoice Comparison

Lowest Total Price: $39,995

Pontiac G8 GXP   
Difference: $28,570

Lowest Total Invoice: $37,926

Pontiac G8 GXP   
Difference: $21,818

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092008
ModelG8Cayman
TrimGXPS
Body4dr Sedan2dr Hatch
Base Price $37,610 $59,100
Base Invoice $35,541 $51,567
Power Seat Package   1,550
Metallic paint (extra cost)   690
Floor mats   115
Heated front seats   480
Automatic climate control, front   550
Carbon fiber / leather-wrapped steering wheel   1,360
5-speed shiftable automatic   3,210
CD changer, remote   650
Power Seat Package   1,318
Metallic paint (extra cost)   587
Floor mats   98
Heated front seats   408
Automatic climate control, front   468
Carbon fiber / leather-wrapped steering wheel   1,156
5-speed shiftable automatic   2,729
CD changer, remote   553
Options (change) 0 8,605
Options (change) 0 7,317
Destination 685 860
Gas Tax 1,700 0
Total Price $39,995 $68,565
Total Invoice $37,926 $59,744

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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 Pontiac G8 dealer quotes or Porsche Cayman dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Pontiac G8 vs. Porsche Cayman

Lowest Adjusted Price and Invoice: Pontiac G8 GXP
TrueDelta Adjusted Price Difference: $29,890
TrueDelta Adjusted Invoice Difference: $23,070
Model Year20092008
ModelG8Cayman
TrimGXPS
Body4dr Sedan2dr Hatch
Engine415hp V8295hp H6
TransmissionT6T5
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)13/20 MPG18/25 MPG
Audio (watts, speakers)230, 11230, 7
Tire (rear if not all the same)245/40-19235/40-18
Total Price$39,995$68,565
Adjustments for Features-1,3200
Feature-Adjusted Total Price$38,675$68,565
Total Invoice$37,926$59,744
Adjustments for Features-1,2520
Feature-Adjusted Total Invoice$36,674$59,744

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Features Comparison: Pontiac G8 vs. Porsche Cayman

Model Year20092008
ModelG8Cayman
TrimGXPS
Body4dr Sedan2dr Hatch
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
5-speed manually-shiftable automatic $1000
RWD$0$0
Accessories 
Power rear side windows$200 
Remote start$150 
Universal garage door opener $100
Brakes, Airbags, and Other Safety 
Brake assist$50 
Side curtain airbags$350 
Cargo Management 
Rear seat pass-through$100 
Climate Control 
Dual-zone climate control$125 
Heated windshield washer nozzles $15
Interior air filter $0
Rear air vents$100 
Water-repellent front-door glass $15
Drivetrain 
Limited-slip rear differential$300 
Engine / Motor 
Mid-engine configuration $0
Exterior 
Hood scoop$100 
Rear spoiler$200 
Retractable rear spoiler $400
Infotainment 
Aux input$50 
Bluetooth cell phone link$100 
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
MP3-compatible player$50 
Satellite radio$200 
Telematics service, such as OnStar$200 
USB port$25 
Instruments, Lights, and Mirrors 
Automatic headlights$125 
Compass$0 
Fog light, rear $100
Heated mirrors $25
Interior ambient lighting $150
Outside temperature display $50
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel $150
Center armrest(s), second row$50 
Leather door panel trim $250
Leather-wrapped steering wheel$150 
Manual lumbar adjuster, driver seat$50 
Manual lumbar adjuster, passenger seat$50 
Memory system, driver seat $200
No leather in second row $-300
Power 4-way lumbar adjuster, driver seat $150
Power recliner, driver seat $100
Power recliner, passenger seat $100
Suspension, Wheels, and Tires 
Alloy wheels $350
Polished alloy wheels$350 
Sport suspension (upgrade)$0 
Total Value of Features$4,500$3,180
Value of Feature Adjustments$1,320$0
Value of Feature Adjustments-1,2520

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See a complete comparison of Pontiac G8 vs. Porsche Cayman features.

Specifications Comparison: Pontiac G8 vs. Porsche Cayman

Model Year20092008
ModelG8Cayman
Body4dr Sedan2dr Hatch
Wheelbase114.8 in95.1 in
Length196.1 in170.9 in
Width74.8 in70.9 in
Height57.7 in51.4 in
Curb Weight4,020 lb.3,163 lb.
Fuel Capacity19.0 gal.17.0 gal.
Row 1 Headroom38.7 in0.0 in
Row 1 Shoulder Room59.1 in0.0 in
Row 1 Hip Room56.7 in0.0 in
Row 1 Legroom42.2 in0.0 in
Row 2 Headroom38.0 in0.0 in
Row 2 Shoulder Room59.1 in0.0 in
Row 2 Hip Room58.0 in0.0 in
Row 2 Legroom39.4 in0.0 in
Cargo Volume17.5 ft314.5 ft3

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See a complete comparison of Pontiac G8 vs. Porsche Cayman specs.

Option Package Details
Porsche Cayman S

Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Power Seat Package
FeatureValueRequested?
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 seat200No
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested50059%
Total Not Requested35041%

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