Acura RDX Acura RDX 2009 Audi A4 / S4 Audi A4 / S4 2015

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

Join Us

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: $37,955

Acura RDX   
Difference: $15,920

Lowest Total Invoice: $34,950

Acura RDX   
Difference: $15,220

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092015
ModelRDXA4 / S4
TrimBaseS4 3.0T
Body4dr SUV4dr Sedan
Base Price $33,895 $48,400
Base Invoice $31,164 $45,012
Technology Package 3,300 2,900
Metallic paint (extra cost)   550
Active rear differential   1,100
Technology Package 3,026 2,698
Metallic paint (extra cost)   511
Active rear differential   1,024
Options (change) 3,300 4,550
Options (change) 3,026 4,233
Destination 760 925
Total Price $37,955 $53,875
Total Invoice $34,950 $50,170

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 Acura RDX 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: Acura RDX vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Acura RDX
TrueDelta Adjusted Price Difference: $15,415
TrueDelta Adjusted Invoice Difference: $14,750
Model Year20092015
ModelRDXA4 / S4
TrimBaseS4 3.0T
Body4dr SUV4dr Sedan
Engine240hp I4333hp V6
TransmissionT5M6
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)410, 10180, 10
Tire (rear if not all the same)235/55-18245/40-18
Total Price$37,955$53,875
Adjustments for Features0-505
Feature-Adjusted Total Price$37,955$53,370
Total Invoice$34,950$50,170
Adjustments for Features0-470
Feature-Adjusted Total Invoice$34,950$49,700

Return to top

Features Comparison: Acura RDX vs. Audi A4 / S4

Model Year20092015
ModelRDXA4 / S4
TrimBaseS4 3.0T
Body4dr SUV4dr Sedan
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
6-speed manual $150
AWD$1700$1700
Accessories 
Proximity key $250
Brakes, Airbags, and Other Safety 
Blind spot warning system $200
Obstacle detection, rear $250
Rollover sensor$50 
Cargo Management 
Air-conditioned storage compartment $50
Cargo cover$75 
Climate Control 
Automatic air recirculation $100
Heated windshield washer nozzles $15
Rain-sensing wipers $175
Rear air vents with automatic controls $250
Rear wiper$175 
Variable intermittent wipers$75 
Exterior 
Body kit $0
Bodyside cladding$350 
Deep-tinted rear windows$275 
Rear spoiler$200 
Infotainment 
Bluetooth audio streaming $25
CD changer, in-dash$325 
CD player $125
DVD-Audio-compatible player$0 
DVD-compatible player $0
HD radio $50
In-vehicle Internet $150
iPod integration $100
Media drive $15
SD Card slot $25
Surround sound$250 
Traffic + travel information $25
Traffic information$25 
Wi-Fi hotspot $50
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75
Auto-dimming passenger-side mirror $75
Auto-dimming rearview mirror $150
Automatic headlights $125
Automatic-off headlights$25 
Boost gauge$75 
Compass $0
Fog light, rear $100
Mirror tilt-down in reverse$25 
Seats and Interior Trim 
Aluminum trim $100
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger 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
Synthetic suede inserts in leather seating surfaces $0
Suspension, Wheels, and Tires 
Electronic systems calibration selector $200
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$4,725$5,230
Value of Feature Adjustments$0$505
Value of Feature Adjustments0-470

Return to top

Specifications Comparison: Acura RDX vs. Audi A4 / S4

Model Year20092015
ModelRDXA4 / S4
Body4dr SUV4dr Sedan
Wheelbase104.3 in110.6 in
Length180.7 in185.1 in
Width73.6 in71.9 in
Height65.2 in56.2 in
Curb Weight3,969 lb.3,510 lb.
Fuel Capacity18.0 gal.16.9 gal.
Row 1 Headroom38.7 in40.0 in
Row 1 Shoulder Room58.2 in55.5 in
Row 1 Hip Room54.4 in0.0 in
Row 1 Legroom41.8 in41.3 in
Row 2 Headroom38.3 in37.5 in
Row 2 Shoulder Room56.3 in54.3 in
Row 2 Hip Room53.0 in0.0 in
Row 2 Legroom37.6 in35.2 in
Cargo Volume,
Minimum
27.8 ft312.4 ft3
Cargo Volume,
Maximum
60.6 ft312.4 ft3

Return to top

Option Package Details
Acura RDX

Technology Package
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0Yes
Rearview camera200Yes
Surround sound250No
Voice control for nav and audio100Yes
Traffic information25Yes
ELS, 410W, 10 speakers (with subwoofer)350No
Total Requested92561%
Total Not Requested60039%

Option Package Details
Audi A4 / S4 S4 3.0T

Technology Package
FeatureValueRequested?
Obstacle detection, rear250No
Rearview camera200Yes
Blind spot warning system200No
In-vehicle Internet150No
Wi-Fi hotspot50No
Media drive15No
Traffic + travel information25No
Bluetooth audio streaming25No
Navigation system600Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
HD radio50No
Total Requested90054%
Total Not Requested76546%

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 SUVs
See TrueDelta's information for all Acura models.