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Pontiac Grand Prix vs. Mazda RX-8 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. Mazda RX-8 Invoice Comparison

Lowest Total Price: $33,065

Pontiac Grand Prix GXP   
Difference: $1,105

Lowest Total Invoice: $30,874

Pontiac Grand Prix GXP   
Difference: $588

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  Down Payment Interest Rate Term
Model Year20072008
ModelGrand PrixRX-8
TrimGXPManual
Body4dr Sedan4dr Coupe
Base Price $28,815 $26,435
Base Invoice $27,230 $24,458
Side curtain airbags 395  
Floor mats 80  
Cargo mat 50 50
Navigation system 2,145 2,000
Sunroof 895  
Grand Touring Package   4,635
Rear spoiler   360
Cargo net   40
Side curtain airbags 328  
Floor mats 66  
Cargo mat 42 36
Navigation system 1,780 1,721
Sunroof 743  
Grand Touring Package   4,277
Rear spoiler   288
Cargo net   32
Options (change) 3,565 7,085
Options (change) 2,959 6,354
Destination 685 650
Total Price $33,065 $34,170
Total Invoice $30,874 $31,462

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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 Grand Prix dealer quotes or Mazda RX-8 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Pontiac Grand Prix vs. Mazda RX-8

Lowest Adjusted Price and Invoice: Pontiac Grand Prix GXP
TrueDelta Adjusted Price Difference: $1,630
TrueDelta Adjusted Invoice Difference: $1,078
Model Year20072008
ModelGrand PrixRX-8
TrimGXPManual
Body4dr Sedan4dr Coupe
Engine303hp V8232hp R2
TransmissionT4M6
DrivetrainFWDRWD
EPA Fuel Economy (city/highway)18/27 MPG16/22 MPG
Audio (watts, speakers)245, 9300, 9
Tire (rear if not all the same)255/45-18225/45-18
Total Price$33,065$34,170
Adjustments for Features-5250
Feature-Adjusted Total Price$32,540$34,170
Total Invoice$30,874$31,462
Adjustments for Features-4900
Feature-Adjusted Total Invoice$30,384$31,462

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Features Comparison: Pontiac Grand Prix vs. Mazda RX-8

Model Year20072008
ModelGrand PrixRX-8
TrimGXPManual
Body4dr Sedan4dr Coupe
Transmission and Drivetrain 
4-speed manually-shiftable automatic$900 
6-speed manual $150
FWD$0 
RWD $0
Accessories 
Power rear side windows$200 
Proximity key $250
Remote keyless entry $225
Remote keyless entry, extended range$225 
Remote start$150 
Universal garage door opener $100
Brakes, Airbags, and Other Safety 
Front side airbags $350
Cargo Management 
Overhead sunglass holder $25
Rear seat pass-through $100
Second-row high console $250
Climate Control 
Automatic climate control, front$200 
Dual-zone climate control$125 
Drivetrain 
Limited-slip rear differential $300
Exterior 
Bodyside moldings$75 
Infotainment 
CD changer, in-dash $325
CD player$125 
Telematics service, such as OnStar$200 
Instruments, Lights, and Mirrors 
Auto-dimming rearview mirror $150
Automatic headlights$125 
Compass$0 
Head-up display (HUD)$350 
Heated mirrors $25
Trip computer$150 
Xenon HID headlights $500
Seats and Interior Trim 
Center armrest(s), second row $50
Folding passenger seat$150 
Folding second row seats$300 
Power 4-way lumbar adjuster, driver seat$150 
Power lumbar adjuster, driver seat $100
Power recliner, driver seat $100
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Alloy wheels $350
Performance steering system (optional)$0 
Polished alloy wheels$350 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$3,875$3,350
Value of Feature Adjustments$525$0
Value of Feature Adjustments-4900

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See a complete comparison of Pontiac Grand Prix vs. Mazda RX-8 features.

Specifications Comparison: Pontiac Grand Prix vs. Mazda RX-8

Model Year20072008
ModelGrand PrixRX-8
Body4dr Sedan4dr Coupe
Wheelbase110.5 in106.4 in
Length198.3 in174.3 in
Width71.6 in69.7 in
Height55.9 in52.8 in
Curb Weight3,600 lb.3,045 lb.
Fuel Capacity17.0 gal.15.9 gal.
Row 1 Headroom38.8 in38.2 in
Row 1 Shoulder Room58.0 in54.8 in
Row 1 Hip Room54.5 in53.3 in
Row 1 Legroom42.2 in42.7 in
Row 2 Headroom36.2 in36.8 in
Row 2 Shoulder Room54.8 in54.9 in
Row 2 Hip Room54.3 in48.1 in
Row 2 Legroom36.2 in32.2 in
Cargo Volume16.0 ft37.6 ft3

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See a complete comparison of Pontiac Grand Prix vs. Mazda RX-8 specs.

Option Package Details
Mazda RX-8 Manual

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25No
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100No
Power lumbar adjuster, driver seat100Yes
Proximity key250No
Traction control100Yes
Stability control400Yes
Fog lights125Yes
Xenon HID headlights500No
Sunroof900Yes
CD changer, in-dash200No
Universal garage door opener100No
Auto-dimming rearview mirror150No
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested297559%
Total Not Requested207541%

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