Audi A4 / S4 Audi A4 / S4 2006 Infiniti FX Infiniti FX 2006
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Audi A4 / S4 vs. Infiniti FX 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. Infiniti FX Invoice Comparison

Lowest Total Price: $52,600

Infiniti FX FX45   
Difference: $5,070

Lowest Total Invoice: $48,251

Infiniti FX FX45   
Difference: $5,026

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006
ModelA4 / S4FX
TrimS4 AvantFX45
Body4dr Wagon4dr SUV
Base Price $47,400 $49,750
Base Invoice $43,668 $45,705
Premium Package 2,900  
6-speed shiftable automatic 1,200  
Metallic paint (extra cost) 450  
Bluetooth cell phone link 500  
Bose 215W 10 speakers 1,000  
Tire-pressure monitor 250  
Navigation system 1,950 1,800
Satellite radio   400
Premium Package 2,639  
6-speed shiftable automatic 1,172  
Metallic paint (extra cost) 410  
Bluetooth cell phone link 455  
Bose 215W 10 speakers 910  
Tire-pressure monitor 228  
Navigation system 1,775 1,551
Satellite radio   345
Options (change) 8,250 2,200
Options (change) 7,589 1,896
Destination 720 650
Gas Tax 1,300 0
Total Price $57,670 $52,600
Total Invoice $53,277 $48,251

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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 Audi A4 / S4 dealer quotes or Infiniti FX dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Audi A4 / S4 vs. Infiniti FX

Lowest Adjusted Price and Invoice: Infiniti FX FX45
TrueDelta Adjusted Price Difference: $6,030
TrueDelta Adjusted Invoice Difference: $5,907
Model Year20062006
ModelA4 / S4FX
TrimS4 AvantFX45
Body4dr Wagon4dr SUV
Engine340hp V8320hp V8
TransmissionT6T5
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)15/23 MPG14/18 MPG
Audio (watts, speakers)215, 10300, 11
Tire (rear if not all the same)235/40-18265/50-20
Total Price$57,670$52,600
Adjustments for Features0-960
Feature-Adjusted Total Price$57,670$51,640
Total Invoice$53,277$48,251
Adjustments for Features0-881
Feature-Adjusted Total Invoice$53,277$47,370

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Features Comparison: Audi A4 / S4 vs. Infiniti FX

Model Year20062006
ModelA4 / S4FX
TrimS4 AvantFX45
Body4dr Wagon4dr SUV
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
5-speed manually-shiftable automatic $1000
AWD$1700$1700
Accessories 
Power liftgate $350
Proximity key $250
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Rearview camera $200
Rollover sensor $50
Cargo Management 
Cargo area partition net$40 
Overhead sunglass holder $25
Climate Control 
Heated windshield washer nozzles$15 
Rain-sensing wipers$175 
Rear air vents $100
Variable intermittent wipers $75
Drivetrain 
Lockable center differential $150
Exterior 
Bodyside moldings$75 
Deep-tinted rear windows $275
Rear spoiler $200
Wheel-lip moldings $75
Infotainment 
CD changer, in-dash $325
CD changer, remote$200 
MP3-compatible player $50
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming driver-side mirror$75 
Auto-dimming passenger-side mirror$75 
Fog light, rear$100 
Headlight washers$50 
Power-folding mirrors$50 
Steering-linked headlights$150 
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Manual recliner, second row seats $75
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 lumbar adjuster, driver seat $100
Suspension, Wheels, and Tires 
Sport suspension (upgrade) $0
Ultra-sport suspension (upgrade)$0 
Total Value of Features$4,430$5,390
Value of Feature Adjustments$0$960
Value of Feature Adjustments0-881

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See a complete comparison of Audi A4 / S4 vs. Infiniti FX features.

Specifications Comparison: Audi A4 / S4 vs. Infiniti FX

Model Year20062006
ModelA4 / S4FX
Body4dr Wagon4dr SUV
Wheelbase104.3 in112.2 in
Length180.6 in189.1 in
Width69.8 in75.8 in
Height56.2 in65.9 in
Curb Weight4,024 lb.4,533 lb.
Fuel Capacity16.6 gal.23.8 gal.
Row 1 Headroom38.4 in40.8 in
Row 1 Shoulder Room55.1 in56.9 in
Row 1 Hip Room0.0 in54.3 in
Row 1 Legroom41.3 in43.9 in
Row 2 Headroom37.6 in39.5 in
Row 2 Shoulder Room53.4 in57.4 in
Row 2 Hip Room0.0 in55.0 in
Row 2 Legroom34.3 in35.2 in
Cargo Volume,
Minimum		27.8 ft327.4 ft3
Cargo Volume,
Maximum		59.0 ft364.5 ft3

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See a complete comparison of Audi A4 / S4 vs. Infiniti FX specs.

Option Package Details
Audi A4 / S4 S4 Avant

Premium Package
FeatureValueRequested?
Sunroof900Yes
Universal garage door opener100Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150No
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Heated front seats200Yes
Auto-dimming driver-side mirror75No
Compass0Yes
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Auto-dimming rearview mirror150Yes
Total Requested167579%
Total Not Requested45021%

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