Audi A4 / S4 Audi A4 / S4 2018 Mazda RX-8 Mazda RX-8 2007

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

Join Us

Audi A4 / S4 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.

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

Lowest Total Price: $33,095

Mazda RX-8 Manual   
Difference: $5,720

Lowest Total Invoice: $30,470

Mazda RX-8 Manual   
Difference: $5,698

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182018201820072007
ModelA4 / S4A4 / S4A4 / S4RX-8RX-8
TrimA4 2.0T ultraA4 2.0TS4 3.0TAutomaticManual
Body4dr Sedan4dr Sedan4dr Sedan4dr Coupe4dr Coupe
Base Price $36,000 $40,500 $51,400 $26,435 $26,435
Base Invoice $33,480 $37,666 $47,802 $24,458 $24,458
Metallic paint (extra cost) 575 575 575    
Cargo net 80 80 80 40 40
All-weather floor mats 190 190 190 60 60
Carbon fiber rear spoiler 995        
S Sport Package     2,500    
Grand Touring Package       5,335 4,635
Rear spoiler       360 360
Body kit       970 970
Metallic paint (extra cost) 536 536 536    
Cargo net 74 74 74 32 32
All-weather floor mats 177 177 177 45 45
Carbon fiber rear spoiler 926        
S Sport Package     2,326    
Grand Touring Package       4,922 4,277
Rear spoiler       288 288
Body kit       775 775
Options (change) 1,840 845 3,345 6,765 6,065
Options (change) 1,713 787 3,113 6,062 5,417
Destination 975 975 975 595 595
Total Price $38,815 $42,320 $55,720 $33,795 $33,095
Total Invoice $36,168 $39,428 $51,890 $31,115 $30,470

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

Lowest Adjusted Price and Invoice: Mazda RX-8 Automatic
TrueDelta Adjusted Price Difference: $1,505
TrueDelta Adjusted Invoice Difference: $1,766
Model Year20182018201820072007
ModelA4 / S4A4 / S4A4 / S4RX-8RX-8
TrimA4 2.0T ultraA4 2.0TS4 3.0TAutomaticManual
Body4dr Sedan4dr Sedan4dr Sedan4dr Coupe4dr Coupe
Engine190hp I4252hp I4354hp V6212hp R2232hp R2
TransmissionS7S7T8T6M6
DrivetrainFWDAWDAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)180, 10180, 10755, 19300, 9300, 9
Tire (rear if not all the same)225/50-17225/50-17245/40-18225/45-18225/45-18
Total Price$38,815$42,320$55,720$33,795$33,095
Adjustments for Features-4,565-5,965-11,215-1,0500
Feature-Adjusted Total Price$34,250$36,355$44,505$32,745$33,095
Cost Above Minimum$0$2,105$10,255$0$350
Total Invoice$36,168$39,428$51,890$31,115$30,470
Adjustments for Features-4,254-5,557-10,444-9670
Feature-Adjusted Total Invoice$31,914$33,871$41,446$30,148$30,470
Cost Above Minimum$0$1,957$9,532$0$322

Return to top

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

Model Year20182018201820072007
ModelA4 / S4A4 / S4A4 / S4RX-8RX-8
TrimA4 2.0T ultraA4 2.0TS4 3.0TAutomaticManual
Body4dr Sedan4dr Sedan4dr Sedan4dr Coupe4dr Coupe
Transmission and Drivetrain 
7-speed automated manual$1200$1200   
8-speed manually-shiftable automatic  $1300  
6-speed manually-shiftable automatic   $1100 
6-speed manual    $150
FWD$0    
AWD $1700$1700  
RWD   $0$0
Accessories 
Power rear side windows$200$200$200  
Proximity key  $250$250$250
Tilt steering wheel, manual   $150$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$25
Rear seat pass-through   $100$100
Second-row high console   $250$250
Climate Control 
Automatic climate control, front$200$200$200  
Dual-zone climate control$125$125$125  
Heated windshield washer nozzles$15$15$15  
Rain-sensing wipers$175$175$175  
Rear air vents with automatic controls$250$250$250  
Variable intermittent wipers   $75$75
Drivetrain 
Active rear differential  $500  
Limited-slip rear differential   $300$300
Engine / Motor 
Automatic start / stop$150$150$150  
Regenerative braking$0$0$0  
Exterior 
Carbon fiber rear spoiler$300    
Painted brake calipers (optional)  $0  
Rear spoiler  $200$200$200
Infotainment 
Android Auto support$100$100$100  
Apple CarPlay support$100$100$100  
Aux input$50$50$50  
Bluetooth audio streaming$25$25$25  
Bluetooth cell phone link$100$100$100  
CD changer, in-dash   $325$325
CD player, remote$100$100$100  
HD radio  $50  
MP3-compatible player$50$50$50  
Satellite radio  $200  
Surround sound  $250  
Telematics service, such as OnStar  $200  
Voice control for audio system$25$25$25  
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror  $75  
Auto-dimming passenger-side mirror  $75  
Automatic headlights$125$125$125  
Boost gauge  $75  
Compass$0$0$0  
Fog light, rear$100$100$100  
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$500
Seats and Interior Trim 
Aluminum trim$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  
Memory system, driver seat  $200  
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$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$0$0
Transmission 
Launch control  $100  
Steering-wheel-mounted transmission controls$100$100$100$100 
Total Value of Features$6,990$8,390$13,640$3,475$2,425
Value of Feature Adjustments$4,565$5,965$11,215$1,050$0
Value of Feature Adjustments-4,254-5,557-10,444-9670

Return to top

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

Model Year20182007
ModelA4 / S4RX-8
Body4dr Sedan4dr Coupe
Wheelbase111.0 in106.4 in
Length186.1 in174.3 in
Width72.5 in69.7 in
Height56.2 in52.8 in
Curb Weight3,451 lb.3,046 lb.
Fuel Capacity16.9 gal.15.9 gal.
Row 1 Headroom38.9 in38.2 in
Row 1 Shoulder Room55.9 in54.8 in
Row 1 Hip Room0.0 in53.3 in
Row 1 Legroom41.3 in42.7 in
Row 2 Headroom37.4 in36.8 in
Row 2 Shoulder Room54.5 in54.9 in
Row 2 Hip Room0.0 in48.1 in
Row 2 Legroom35.7 in32.2 in
Cargo Volume13.0 ft37.6 ft3

Return to top

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%

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
Fog lights125Yes
Xenon HID headlights500Yes
Traction control100Yes
Stability control400Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Sunroof900Yes
CD changer, in-dash200No
Bose, 300W, 9 speakers350No
Limited-slip rear differential300Yes
Sport suspension (upgrade)250Yes
Performance braking system (optional)250No
225/45ZR18 tires400No
Total Requested465079%
Total Not Requested120021%

Option Package Details
Mazda RX-8 Manual

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
Fog lights125Yes
Xenon HID headlights500Yes
Traction control100Yes
Stability control400Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Sunroof900Yes
CD changer, in-dash200No
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested410081%
Total Not Requested95019%

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, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.