Mazda RX-8 Mazda RX-8 2009 Audi A4 / S4 Audi A4 / S4 2018

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

Join Us

Mazda RX-8 vs. Audi A4 / S4 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. Audi A4 / S4 Invoice Comparison

Lowest Total Price: $33,083

Mazda RX-8 Grand Touring   
Difference: $6,972

Lowest Total Invoice: $30,539

Mazda RX-8 Grand Touring   
Difference: $6,782

Calculate Payments

  Down Payment Interest Rate Term
Model Year2009201820182018
ModelRX-8A4 / S4A4 / S4A4 / S4
TrimGrand TouringA4 2.0T ultraA4 2.0TS4 3.0T
Body4dr Coupe4dr Sedan4dr Sedan4dr Sedan
Base Price $31,000 $36,000 $40,500 $51,400
Base Invoice $28,681 $33,480 $37,666 $47,802
Premium Package 900      
Temporary spare tire 395      
Cargo net 40 80 80 80
All-weather floor mats 78 190 190 190
Convenience Package   1,000 1,000  
Metallic paint (extra cost)   575 575 575
Metal pedals   240 240  
Carbon fiber rear spoiler   995    
S Sport Package       2,500
Premium Package 774      
Temporary spare tire 320      
Cargo net 32 74 74 74
All-weather floor mats 62 177 177 177
Convenience Package   930 930  
Metallic paint (extra cost)   536 536 536
Metal pedals   223 223  
Carbon fiber rear spoiler   926    
S Sport Package       2,326
Options (change) 1,413 3,080 2,085 3,345
Options (change) 1,188 2,866 1,940 3,113
Destination 670 975 975 975
Total Price $33,083 $40,055 $43,560 $55,720
Total Invoice $30,539 $37,321 $40,581 $51,890

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 Mazda RX-8 dealer quotes or Audi A4 / S4 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: Mazda RX-8 vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Mazda RX-8 Grand Touring
TrueDelta Adjusted Price Difference: $2,582
TrueDelta Adjusted Invoice Difference: $2,692
Model Year2009201820182018
ModelRX-8A4 / S4A4 / S4A4 / S4
TrimGrand TouringA4 2.0T ultraA4 2.0TS4 3.0T
Body4dr Coupe4dr Sedan4dr Sedan4dr Sedan
Engine232hp R2190hp I4252hp I4354hp V6
TransmissionM6S7S7T8
DrivetrainRWDFWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 9180, 10180, 10755, 19
Tire (rear if not all the same)225/45-18225/50-17225/50-17245/40-18
Total Price$33,083$40,055$43,560$55,720
Adjustments for Features0-4,390-5,790-10,140
Feature-Adjusted Total Price$33,083$35,665$37,770$45,580
Cost Above Minimum$0$0$2,105$9,915
Total Invoice$30,539$37,321$40,581$51,890
Adjustments for Features0-4,090-5,394-9,443
Feature-Adjusted Total Invoice$30,539$33,231$35,187$42,447
Cost Above Minimum$0$0$1,956$9,216

Return to top

Features Comparison: Mazda RX-8 vs. Audi A4 / S4

Model Year2009201820182018
ModelRX-8A4 / S4A4 / S4A4 / S4
TrimGrand TouringA4 2.0T ultraA4 2.0TS4 3.0T
Body4dr Coupe4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150   
7-speed automated manual $1200$1200 
8-speed manually-shiftable automatic   $1300
RWD$0   
FWD $0  
AWD  $1700$1700
Accessories 
Power rear side windows $200$200$200
Tilt steering wheel, manual$150   
Tilt/telescoping steering wheel, manual $250$250$250
Brakes, Airbags, and Other Safety 
Automatic braking, high-speed or partial $200$200$200
Automatic braking, low-speed $200$200$200
Blind spot warning system   $200
Brake assist $50$50$50
Collision preparation system, rear   $100
Cross-traffic warning, rear   $100
Driver drowsiness monitor $150$150$150
Forward collision warning $200$200$200
Knee airbag, driver $75$75$75
Knee airbag, passenger $75$75$75
Obstacle detection, front   $150
Obstacle detection, rear   $250
Pedestrian detection $50$50$50
Radar- or camera-based collision preparation system $0$0$0
Rearview camera $200$200$200
Rollover sensor $50$50$50
Secondary collision brake assist $25$25$25
Torque vectoring, brake-based $100$100$100
Vehicle exit assist   $25
Cargo Management 
Air-conditioned storage compartment $50$50$50
Overhead sunglass holder$25   
Rear seat pass-through$100   
Second-row high console$250   
Climate Control 
Automatic air recirculation $100$100$100
Dual-zone climate control $125$125$125
Heated windshield washer nozzles $15$15$15
Rear air vents with automatic controls $250$250$250
Drivetrain 
Active rear differential   $500
Limited-slip rear differential$300   
Engine / Motor 
Automatic start / stop $150$150$150
Regenerative braking $0$0$0
Exterior 
Body kit $0$0$0
Carbon fiber rear spoiler $300  
Painted brake calipers (optional)   $0
Rear spoiler$200  $200
Infotainment 
Android Auto support $100$100$100
Apple CarPlay support $100$100$100
Bluetooth audio streaming $25$25$25
CD changer, in-dash$325   
CD player, remote $100$100$100
HD radio   $50
SD Card slot $25$25$25
Surround sound$250  $250
Telematics service, such as OnStar   $200
USB port $25$25$25
Voice control for audio system $25$25$25
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75$75$75
Auto-dimming passenger-side mirror $75$75$75
Boost gauge   $75
Compass $0$0$0
Fog light, rear $100$100$100
Interior ambient lighting $150$150$150
LED headlights   $1000
Power-folding mirrors   $50
Trip computer $150$150$150
Turn signals on or near mirrors $25$25$25
Xenon HID headlights$500$500$500 
Seats and Interior Trim 
Aluminum trim $100$100$100
Door sill trim plates$100$100$100 
Folding second row seats $300$300$300
Illuminated door sill trim plates   $200
Manual thigh support length adjuster, driver seat   $50
Manual thigh support length adjuster, passenger seat   $50
Massage, driver seat   $100
Massage, passenger seat   $100
Power 4-way lumbar adjuster, driver seat $150$150$150
Power 4-way lumbar adjuster, passenger seat   $150
Power fore-aft adjuster, passenger seat $100$100$100
Power height adjuster, passenger seat $100$100$100
Power lumbar adjuster, driver seat$100   
Power recliner, passenger seat $100$100$100
Power seatback bolsters, driver seat   $100
Power seatback bolsters, passenger seat   $100
Power tilt adjuster, passenger seat $100$100$100
Synthetic suede door panel trim   $250
Synthetic suede inserts in leather seating surfaces   $0
Suspension, Wheels, and Tires 
Adaptive dampers - electrical   $500
Electronic systems calibration selector $200$200$200
Sport suspension (upgrade)   $0
Transmission 
Launch control   $100
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$2,450$6,840$8,240$12,590
Value of Feature Adjustments$0$4,390$5,790$10,140
Value of Feature Adjustments0-4,090-5,394-9,443

Return to top

Specifications Comparison: Mazda RX-8 vs. Audi A4 / S4

Model Year20092018
ModelRX-8A4 / S4
Body4dr Coupe4dr Sedan
Wheelbase106.4 in111.0 in
Length175.6 in186.1 in
Width69.7 in72.5 in
Height52.8 in56.2 in
Curb Weight3,065 lb.3,451 lb.
Fuel Capacity15.9 gal.16.9 gal.
Row 1 Headroom38.2 in38.9 in
Row 1 Shoulder Room54.8 in55.9 in
Row 1 Hip Room53.3 in0.0 in
Row 1 Legroom42.7 in41.3 in
Row 2 Headroom36.8 in37.4 in
Row 2 Shoulder Room54.9 in54.5 in
Row 2 Hip Room48.1 in0.0 in
Row 2 Legroom32.2 in35.7 in
Cargo Volume7.6 ft313.0 ft3

Return to top

Option Package Details
Mazda RX-8 Grand Touring

Premium Package
FeatureValueRequested?
Sunroof900Yes
Satellite radio200Yes
Total Requested1100100%
Total Not Requested00%

Option Package Details
Audi A4 / S4 A4 2.0T ultra

Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Satellite radio200Yes
Auto-dimming driver-side mirror75No
Alarm100No
Proximity key250Yes
Auto-dimming passenger-side mirror75No
Total Requested65072%
Total Not Requested25028%

Option Package Details
Audi A4 / S4 A4 2.0T

Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Satellite radio200Yes
Auto-dimming driver-side mirror75No
Alarm100No
Proximity key250Yes
Auto-dimming passenger-side mirror75No
Total Requested65072%
Total Not Requested25028%

Option Package Details
Audi A4 / S4 S4 3.0T

S Sport Package
FeatureValueRequested?
Adaptive dampers - electrical500No
Active rear differential500No
Painted brake calipers (optional)0No
Total Requested00%
Total Not Requested1000100%

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 Coupes
See TrueDelta's information for all Mazda models.