Acura RDX Acura RDX 2015 Audi A4 / S4 Audi A4 / S4 2006

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Acura RDX 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.

Acura RDX vs. Audi A4 / S4 Invoice Comparison

Lowest Total Price: $41,115

Acura RDX   
Difference: $16,555

Lowest Total Invoice: $38,602

Acura RDX   
Difference: $14,675

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152006
ModelRDXA4 / S4
TrimBaseS4 Avant
Body4dr SUV4dr Wagon
Base Price $35,095 $47,400
Base Invoice $32,962 $43,668
Technology Package 3,700  
AWD 1,400  
Premium Package   2,900
6-speed shiftable automatic   1,200
Metallic paint (extra cost)   450
Tire-pressure monitor   250
Bluetooth cell phone link   500
Bose 215W 10 speakers   1,000
Navigation system   1,950
Technology Package 3,424  
AWD 1,296  
Premium Package   2,639
6-speed shiftable automatic   1,172
Metallic paint (extra cost)   410
Tire-pressure monitor   228
Bluetooth cell phone link   455
Bose 215W 10 speakers   910
Navigation system   1,775
Options (change) 5,100 8,250
Options (change) 4,720 7,589
Destination 920 720
Gas Tax 0 1,300
Total Price $41,115 $57,670
Total Invoice $38,602 $53,277

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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 Acura RDX dealer quotes or Audi A4 / S4 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Acura RDX vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Acura RDX
TrueDelta Adjusted Price Difference: $17,300
TrueDelta Adjusted Invoice Difference: $15,374
Model Year20152006
ModelRDXA4 / S4
TrimBaseS4 Avant
Body4dr SUV4dr Wagon
Engine273hp V6340hp V8
TransmissionT6T6
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)19/27 MPG15/23 MPG
Audio (watts, speakers)410, 10215, 10
Tire (rear if not all the same)235/60-18235/40-18
Total Price$41,115$57,670
Adjustments for Features-7450
Feature-Adjusted Total Price$40,370$57,670
Total Invoice$38,602$53,277
Adjustments for Features-6990
Feature-Adjusted Total Invoice$37,903$53,277

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Features Comparison: Acura RDX vs. Audi A4 / S4

Model Year20152006
ModelRDXA4 / S4
TrimBaseS4 Avant
Body4dr SUV4dr Wagon
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
AWD$1700$1700
Accessories 
Active noise reduction$0 
Power liftgate$350 
Proximity key$250 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Rearview camera$200 
Rollover sensor$50 
Cargo Management 
Aluminum roof rails $250
Cargo area partition net $40
Cargo net $40
Climate Control 
Heated windshield washer nozzles $15
Rain-sensing wipers $175
Variable intermittent wipers$75 
Exterior 
Bodyside cladding$350 
Bodyside moldings $75
Deep-tinted rear windows$275 
Rear spoiler$200 
Infotainment 
App support$0 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, remote $200
CD player$125 
Media drive$15 
MP3-compatible player$50 
SMS text-to-speech reader$25 
Surround sound$250 
Telematics service, such as OnStar$200 
Traffic + travel information$25 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75
Auto-dimming passenger-side mirror $75
Fog light, rear $100
Headlight washers $50
Mirror tilt-down in reverse$25 
Power-folding mirrors $50
Spotter mirror(s)$50 
Steering-linked headlights $150
Seats and Interior Trim 
Manual thigh support length adjuster, driver seat $50
Power 4-way lumbar adjuster, driver seat $150
Power 4-way lumbar adjuster, passenger seat $150
Power height adjuster, passenger seat $100
Power lumbar adjuster, driver seat$100 
Power tilt adjuster, passenger seat $100
Wood trim $300
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$5,690$4,945
Value of Feature Adjustments$745$0
Value of Feature Adjustments-6990

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Specifications Comparison: Acura RDX vs. Audi A4 / S4

Model Year20152006
ModelRDXA4 / S4
Body4dr SUV4dr Wagon
Wheelbase105.7 in104.3 in
Length183.5 in180.6 in
Width73.7 in69.8 in
Height66.1 in56.2 in
Curb Weight3,838 lb.4,024 lb.
Fuel Capacity16.0 gal.16.6 gal.
Row 1 Headroom38.7 in38.4 in
Row 1 Shoulder Room58.6 in55.1 in
Row 1 Hip Room55.7 in0.0 in
Row 1 Legroom42.0 in41.3 in
Row 2 Headroom38.1 in37.6 in
Row 2 Shoulder Room57.2 in53.4 in
Row 2 Hip Room53.8 in0.0 in
Row 2 Legroom38.3 in34.3 in
Cargo Volume,
Minimum
26.1 ft327.8 ft3
Cargo Volume,
Maximum
61.3 ft359.0 ft3

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Option Package Details
Acura RDX

Technology Package
FeatureValueRequested?
Navigation system600Yes
Fog lights125Yes
Xenon HID headlights500Yes
Telematics service, such as OnStar200No
DVD-Audio-compatible player0No
Power liftgate350No
Surround sound250No
Voice control for nav and audio100No
Media drive15No
ELS, 410W, 10 speakers (with subwoofer)350No
Traffic + travel information25No
Total Requested122549%
Total Not Requested129051%

Option Package Details
Audi A4 / S4 S4 Avant

6-speed manually-shiftable automatic
FeatureValueRequested?
6-speed manually-shiftable automatic0Yes
1300 Gas-Guzzler Tax0No
4.2L V8
DOHC-5v
340 hp@6800
302 lb-ft@3500
1000Yes
Total Requested1000100%
Total Not Requested00%
Bose, 215W, 10 speakers (with subwoofer)
FeatureValueRequested?
Bose, 215W, 10 speakers (with subwoofer)350No
Satellite radio200Yes
Total Requested20036%
Total Not Requested35064%
Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote-125No
Total Requested600126%
Total Not Requested-125-26%
Premium Package
FeatureValueRequested?
Universal garage door opener100Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150No
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Heated front seats200Yes
Sunroof900Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75No
Compass0Yes
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested167579%
Total Not Requested45021%

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