Pontiac Grand Prix Pontiac Grand Prix 2008 Mazda RX-8 Mazda RX-8 2011

We are 103,000+ car owners sharing real-world car information.

Join Us

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: $33,840

Pontiac Grand Prix GXP   
Difference: $1,700

Lowest Total Invoice: $31,587

Pontiac Grand Prix GXP   
Difference: $1,194

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082011
ModelGrand PrixRX-8
TrimGXPGrand Touring
Body4dr Sedan4dr Coupe
Base Price $29,325 $32,260
Base Invoice $27,712 $29,878
Floor mats 80  
Side curtain airbags 395  
Cargo mat 50 50
Satellite radio 200  
Sunroof 895  
Navigation system 2,145 2,000
Cargo net   40
Temporary spare tire   395
Floor mats 66  
Side curtain airbags 328  
Cargo mat 42 36
Satellite radio 166  
Sunroof 743  
Navigation system 1,780 1,720
Cargo net   32
Temporary spare tire   320
Options (change) 3,765 2,485
Options (change) 3,125 2,108
Destination 750 795
Total Price $33,840 $35,540
Total Invoice $31,587 $32,781

Return to top

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 Mazda RX-8 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. Mazda RX-8

Lowest Adjusted Price: Pontiac Grand Prix GXP
Lowest Adjusted Invoice: Mazda RX-8 Grand Touring
TrueDelta Adjusted Price Difference: $75
TrueDelta Adjusted Invoice Difference: $305
Model Year20082011
ModelGrand PrixRX-8
TrimGXPGrand Touring
Body4dr Sedan4dr Coupe
Engine303hp V8232hp R2
TransmissionT4M6
DrivetrainFWDRWD
EPA Fuel Economy (city/highway)16/25 MPG16/22 MPG
Audio (watts, speakers)245, 9300, 9
Tire (rear if not all the same)255/45-18225/45-18
Total Price$33,840$35,540
Adjustments for Features0-1,625
Feature-Adjusted Total Price$33,840$33,915
Total Invoice$31,587$32,781
Adjustments for Features0-1,499
Feature-Adjusted Total Invoice$31,587$31,282

Return to top

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

Model Year20082011
ModelGrand PrixRX-8
TrimGXPGrand Touring
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 
Dual-zone climate control$125 
Rain-sensing wipers $175
Variable intermittent wipers$75 
Drivetrain 
Limited-slip rear differential $300
Exterior 
Bodyside moldings$75 
Infotainment 
Aux input $50
Bluetooth cell phone link $100
CD changer, in-dash $325
CD player$125 
MP3-compatible player $50
Surround sound $250
Telematics service, such as OnStar$200 
Instruments, Lights, and Mirrors 
Auto-dimming rearview mirror $150
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 
Leather seating surfaces $900
Memory system, driver seat $200
Metal pedals $75
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 
Sport suspension (upgrade)$0 
Total Value of Features$3,525$5,150
Value of Feature Adjustments$0$1,625
Value of Feature Adjustments0-1,499

Return to top

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

Model Year20082011
ModelGrand PrixRX-8
Body4dr Sedan4dr Coupe
Wheelbase110.5 in106.4 in
Length198.3 in175.6 in
Width71.6 in69.7 in
Height55.9 in52.8 in
Curb Weight3,600 lb.3,064 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

Return to top

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Pontiac models.