Mazda RX-8 Mazda RX-8 2008 Acura RDX Acura RDX 2018

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Mazda RX-8 vs. Acura RDX 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.

Mazda RX-8 vs. Acura RDX Invoice Comparison

Lowest Total Price: $35,175

Mazda RX-8 Automatic   
Difference: $6,800

Lowest Total Invoice: $32,359

Mazda RX-8 Automatic   
Difference: $7,537

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082018
ModelRX-8RDX
TrimAutomaticBase
Body4dr Coupe4dr SUV
Base Price $26,435 $35,800
Base Invoice $24,458 $33,995
Grand Touring Package 5,335  
Navigation system 2,000  
Temporary spare tire 395  
Rear spoiler 360  
Technology Package   3,700
AWD   1,500
Grand Touring Package 4,922  
Navigation system 1,721  
Temporary spare tire 320  
Rear spoiler 288  
Technology Package   3,505
AWD   1,421
Options (change) 8,090 5,200
Options (change) 7,251 4,926
Destination 650 975
Total Price $35,175 $41,975
Total Invoice $32,359 $39,896

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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 Mazda RX-8 dealer quotes or Acura RDX dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Mazda RX-8 vs. Acura RDX

Lowest Adjusted Price and Invoice: Mazda RX-8 Automatic
TrueDelta Adjusted Price Difference: $395
TrueDelta Adjusted Invoice Difference: $1,449
Model Year20082018
ModelRX-8RDX
TrimAutomaticBase
Body4dr Coupe4dr SUV
Engine212hp R2279hp V6
TransmissionT6T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)16/23 MPG19/27 MPG
Audio (watts, speakers)300, 9410, 10
Tire (rear if not all the same)225/45-18235/60-18
Total Price$35,175$41,975
Adjustments for Features0-6,405
Feature-Adjusted Total Price$35,175$35,570
Total Invoice$32,359$39,896
Adjustments for Features0-6,088
Feature-Adjusted Total Invoice$32,359$33,808

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Features Comparison: Mazda RX-8 vs. Acura RDX

Model Year20082018
ModelRX-8RDX
TrimAutomaticBase
Body4dr Coupe4dr SUV
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
RWD$0 
AWD $1700
Accessories 
Active noise reduction $0
Power liftgate $350
Power rear side windows $200
Remote window/roof operation $15
Tilt steering wheel, manual$150 
Tilt/telescoping steering wheel, manual $250
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Blind spot warning system $200
Brake assist $50
Cross-traffic warning, rear $100
Rearview camera $200
Rollover sensor $50
Wide-view rear camera $0
Cargo Management 
Cargo cover $75
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
Rear air vents $100
Rear wiper $175
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Bodyside cladding $350
Deep-tinted rear windows $275
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
Bluetooth cell phone link $100
CD changer, in-dash$325 
CD player $125
DVD-Audio-compatible player $0
HD radio $50
Media drive $15
MP3-compatible player $50
Satellite radio $200
Siri Eyes Free support $0
SMS text-to-speech reader $25
Surround sound $250
Telematics service, such as OnStar $200
Traffic + travel information $25
USB port $25
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Automatic headlights $125
Compass $0
Fog lights$125 
Interior ambient lighting $150
LED headlights $1000
Mirror tilt-down in reverse $25
Spotter mirror(s) $50
Trip computer $150
Turn signals on or near mirrors $25
Xenon HID headlights$500 
Seats and Interior Trim 
Folding second row seats $300
Memory system, driver seat $200
Power fore-aft adjuster, passenger seat $100
Power height adjuster, passenger seat $100
Power recliner, passenger seat $100
Power tilt adjuster, passenger seat $100
Suspension, Wheels, and Tires 
Adaptive dampers - mechanical $100
Alloy wheels$350 
Machined alloy wheels $350
Sport suspension (upgrade)$0 
Total Value of Features$3,225$9,630
Value of Feature Adjustments$0$6,405
Value of Feature Adjustments0-6,088

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Specifications Comparison: Mazda RX-8 vs. Acura RDX

Model Year20082018
ModelRX-8RDX
Body4dr Coupe4dr SUV
Wheelbase106.4 in105.7 in
Length174.3 in184.4 in
Width69.7 in73.7 in
Height52.8 in65.0 in
Curb Weight3,075 lb.3,902 lb.
Fuel Capacity15.9 gal.16.0 gal.
Row 1 Headroom38.2 in38.7 in
Row 1 Shoulder Room54.8 in58.7 in
Row 1 Hip Room53.3 in55.7 in
Row 1 Legroom42.7 in42.0 in
Row 2 Headroom36.8 in38.1 in
Row 2 Shoulder Room54.9 in57.2 in
Row 2 Hip Room48.1 in53.8 in
Row 2 Legroom32.2 in38.3 in
Cargo Volume,
Minimum
7.6 ft326.1 ft3
Cargo Volume,
Maximum
7.661.3 ft3

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Option Package Details
Mazda RX-8 Automatic

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100Yes
Proximity key250Yes
Xenon HID headlights500Yes
Traction control100Yes
Stability control400Yes
Fog lights125No
Auto-dimming rearview mirror150Yes
Sunroof900Yes
CD changer, in-dash200No
Universal garage door opener100Yes
Bose, 300W, 9 speakers350No
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300No
225/45ZR18 tires400No
Total Requested397568%
Total Not Requested187532%

Option Package Details
Acura RDX

Technology Package
FeatureValueRequested?
Navigation system600Yes
Leather seating surfaces900Yes
Telematics service, such as OnStar200No
DVD-Audio-compatible player0No
Power height adjuster, passenger seat100No
Power tilt adjuster, passenger seat100No
Surround sound250No
Voice control for nav and audio100No
HD radio50No
Blind spot warning system200No
Media drive15No
ELS, 410W, 10 speakers (with subwoofer)350No
Traffic + travel information25No
Cross-traffic warning, rear100No
Total Requested150050%
Total Not Requested149050%

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