Audi A4 / S4 Audi A4 / S4 2006 Acura RL Acura RL 2006
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Audi A4 / S4 vs. Acura RL 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. Acura RL Invoice Comparison

Lowest Total Price: $49,915

Acura RL   
Difference: $7,155

Lowest Total Invoice: $44,527

Acura RL   
Difference: $8,204

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006
ModelA4 / S4RL
TrimS4Base
Body4dr Sedan4dr Sedan
Base Price $46,400 $49,300
Base Invoice $42,758 $43,912
Premium Package 2,900  
Sunshade, rear, power 400  
6-speed shiftable automatic 1,200  
Metallic paint (extra cost) 450  
Navigation system 1,950  
Bluetooth cell phone link 500  
Bose 215W 10 speakers 1,000  
Tire-pressure monitor 250  
Premium Package 2,639  
Sunshade, rear, power 364  
6-speed shiftable automatic 1,172  
Metallic paint (extra cost) 410  
Navigation system 1,775  
Bluetooth cell phone link 455  
Bose 215W 10 speakers 910  
Tire-pressure monitor 228  
Options (change) 8,650 0
Options (change) 7,953 0
Destination 720 615
Gas Tax 1,300 0
Total Price $57,070 $49,915
Total Invoice $52,731 $44,527

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Audi A4 / S4 dealer quotes or Acura RL 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. Acura RL

Lowest Adjusted Price and Invoice: Acura RL
TrueDelta Adjusted Price Difference: $7,680
TrueDelta Adjusted Invoice Difference: $8,672
Model Year20062006
ModelA4 / S4RL
TrimS4Base
Body4dr Sedan4dr Sedan
Engine340hp V8290hp V6
TransmissionT6T5
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)15/23 MPG18/26 MPG
Audio (watts, speakers)215, 10260, 10
Tire (rear if not all the same)235/40-18245/50-17
Total Price$57,070$49,915
Adjustments for Features0-525
Feature-Adjusted Total Price$57,070$49,390
Total Invoice$52,731$44,527
Adjustments for Features0-468
Feature-Adjusted Total Invoice$52,731$44,059

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Features Comparison: Audi A4 / S4 vs. Acura RL

Model Year20062006
ModelA4 / S4RL
TrimS4Base
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
5-speed manually-shiftable automatic $1000
AWD$1700$1700
Accessories 
Active noise reduction $0
Proximity key $250
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Cargo Management 
Rear seat pass-through $100
Climate Control 
Heated windshield washer nozzles$15 
Rain-sensing wipers$175 
Rear air vents $100
Variable intermittent wipers $75
Drivetrain 
Active rear differential $500
Exterior 
Rear spoiler$200 
Infotainment 
CD changer, in-dash $325
CD changer, remote$200 
Surround sound $250
Telematics service, such as OnStar $200
Traffic 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 
Compass$0 
Fog light, rear$100 
Headlight washers$50 
Mirror tilt-down in reverse $25
Power-folding mirrors$50 
Seats and Interior Trim 
Folding second row seats$300 
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 lumbar adjuster, passenger seat $100
Power tilt adjuster, passenger seat$100 
Power-folding headrests, second row seats $50
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$4,840$5,365
Value of Feature Adjustments$0$525
Value of Feature Adjustments0-468

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See a complete comparison of Audi A4 / S4 vs. Acura RL features.

Specifications Comparison: Audi A4 / S4 vs. Acura RL

Model Year20062006
ModelA4 / S4RL
Body4dr Sedan4dr Sedan
Wheelbase104.3 in110.2 in
Length180.6 in193.6 in
Width69.8 in72.2 in
Height56.2 in57.1 in
Curb Weight3,902 lb.4,012 lb.
Fuel Capacity16.6 gal.19.4 gal.
Row 1 Headroom38.4 in38.5 in
Row 1 Shoulder Room55.1 in58.5 in
Row 1 Hip Room0.0 in55.1 in
Row 1 Legroom41.3 in42.4 in
Row 2 Headroom37.2 in37.2 in
Row 2 Shoulder Room53.4 in56.1 in
Row 2 Hip Room0.0 in54.0 in
Row 2 Legroom34.3 in36.3 in
Cargo Volume13.4 ft313.1 ft3

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See a complete comparison of Audi A4 / S4 vs. Acura RL specs.

Option Package Details
Audi A4 / S4 S4

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Sunroof900Yes
Universal garage door opener100Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150Yes
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75No
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested182586%
Total Not Requested30014%

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