Pontiac Grand Prix Pontiac Grand Prix 2007 Porsche Cayman Porsche Cayman 2006

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Pontiac Grand Prix 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 Grand Prix vs. Porsche Cayman Invoice Comparison

Lowest Total Price: $0

Porsche Cayman S   
Difference: $31,645

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  Down Payment Interest Rate Term
Model Year20072006
ModelGrand PrixCayman
TrimGXPS
Body4dr Sedan2dr Hatch
Base Price $28,815 $0
Navigation system 2,145 0
5-speed shiftable automatic   0
Navigation system 1,780 0
5-speed shiftable automatic   0
Options (change) 2,145 0
Options (change) 1,780 0
Destination 685 0
Total Price $31,645 $0

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Pontiac Grand Prix dealer quotes or Porsche Cayman dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Pontiac Grand Prix vs. Porsche Cayman

Lowest Adjusted Price and Invoice: Porsche Cayman S
TrueDelta Adjusted Price Difference: $23,855
TrueDelta Adjusted Invoice Difference: $22,385
Model Year20072006
ModelGrand PrixCayman
TrimGXPS
Body4dr Sedan2dr Hatch
Engine303hp V8295hp H6
TransmissionT4T5
DrivetrainFWDRWD
EPA Fuel Economy (city/highway)18/27 MPG20/27 MPG
Audio (watts, speakers)245, 9230, 7
Tire (rear if not all the same)255/45-18235/40-18
Total Price$31,645$0
Adjustments for Features-7,7900
Feature-Adjusted Total Price$23,855$0

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Features Comparison: Pontiac Grand Prix vs. Porsche Cayman

Model Year20072006
ModelGrand PrixCayman
TrimGXPS
Body4dr Sedan2dr Hatch
Transmission and Drivetrain 
4-speed manually-shiftable automatic$900 
5-speed manually-shiftable automatic $1000
FWD$0 
RWD $0
Accessories 
Cruise control$150 
Power front side windows$250 
Power locks$275 
Power rear side windows$200 
Remote keyless entry, extended range$225 
Remote start$150 
Tilt steering wheel, manual$150 
Brakes, Airbags, and Other Safety 
4-wheel disc brakes$150 
Antilock brakes (ABS)$400 
Stability control$400 
Tire-pressure monitor$75 
Traction control$100 
Cargo Management 
Cargo net$40 
Console with shifter$150 
Overhead sunglass holder$25 
Climate Control 
Air conditioning$900 
Automatic climate control, front$200 
Dual-zone climate control$125 
Interior air filter$0 
Rear defrost$200 
Variable intermittent wipers$75 
Engine / Motor 
Mid-engine configuration $0
Exterior 
Bodyside moldings$75 
Bright-finished exhaust tip(s)$25 
Rear spoiler$200 
Infotainment 
Audio controls on steering wheel$125 
CD player$125 
Telematics service, such as OnStar$200 
Instruments, Lights, and Mirrors 
Automatic headlights$125 
Compass$0 
Fog lights$125 
Head-up display (HUD)$350 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Outside temperature display$50 
Power mirrors$150 
Tachometer$75 
Trip computer$150 
Seats and Interior Trim 
Center armrest(s), front row$75 
Folding passenger seat$150 
Folding second row seats$300 
Heated front seats$200 
Leather-wrapped steering wheel$150 
Power 4-way lumbar adjuster, driver seat$150 
Power fore-aft adjuster, driver seat$100 
Power height adjuster, driver seat$100 
Power tilt adjuster, driver seat$100 
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Performance steering system (optional)$0 
Polished alloy wheels$350 
Sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$8,790$1,000
Value of Feature Adjustments$7,790$0
Value of Feature Adjustments-7,3100

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Specifications Comparison: Pontiac Grand Prix vs. Porsche Cayman

Model Year20072006
ModelGrand PrixCayman
Body4dr Sedan2dr Hatch
Wheelbase110.5 in95.1 in
Length198.3 in170.9 in
Width71.6 in70.9 in
Height55.9 in51.4 in
Curb Weight3,600 lb.3,053 lb.
Fuel Capacity17.0 gal.17.0 gal.
Row 1 Headroom38.8 in0.0 in
Row 1 Shoulder Room58.0 in0.0 in
Row 1 Hip Room54.5 in0.0 in
Row 1 Legroom42.2 in0.0 in
Row 2 Headroom36.2 in0.0 in
Row 2 Shoulder Room54.8 in0.0 in
Row 2 Hip Room54.3 in0.0 in
Row 2 Legroom36.2 in0.0 in
Cargo Volume16.0 ft314.5 ft3

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