Audi A4 / S4 Audi A4 / S4 2006 Infiniti QX Infiniti QX 2006

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Audi A4 / S4 vs. Infiniti QX 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 QX Invoice Comparison

Lowest Total Price: $41,385

Audi A4 / S4 A4 2.0T Avant   
Difference: $10,745

Lowest Total Invoice: $38,261

Audi A4 / S4 A4 2.0T Avant   
Difference: $9,595

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006200620062006
ModelA4 / S4A4 / S4A4 / S4QX
TrimA4 2.0T AvantA4 3.2 AvantS4 AvantQX56
Body4dr Wagon4dr Wagon4dr Wagon4dr SUV
Base Price $31,340 $36,390 $47,400 $49,800
Base Invoice $29,053 $33,649 $43,668 $45,750
Technology Package 1,275 1,275    
Sunroof 1,400 1,000   1,200
Premium Package 1,850 1,050 2,900  
Cold Weather Package 400 400 400  
Metallic paint (extra cost) 450 450 450  
Wood trim 400      
Navigation system 1,950 1,950 1,950  
Wood/leather-wrapped steering wheel 500 500 500  
Bluetooth cell phone link 500 500 500  
Tire-pressure monitor 250 250 250  
Obstacle detection, rear 350 350 350  
Bose 215W 10 speakers     1,000  
Cargo net       30
Satellite radio       350
Technology Package 1,160 1,160    
Sunroof 1,274 910   1,034
Premium Package 1,684 956 2,639  
Cold Weather Package 364 364 364  
Metallic paint (extra cost) 410 410 410  
Wood trim 364      
Navigation system 1,775 1,775 1,775  
Wood/leather-wrapped steering wheel 455 455 455  
Bluetooth cell phone link 455 455 455  
Tire-pressure monitor 228 228 228  
Obstacle detection, rear 319 319 319  
Bose 215W 10 speakers     910  
Cargo net       20
Satellite radio       302
Options (change) 9,325 7,725 8,300 1,580
Options (change) 8,488 7,032 7,555 1,356
Destination 720 720 720 750
Gas Tax 0 0 1,700 0
Total Price $41,385 $44,835 $58,120 $52,130
Total Invoice $38,261 $41,401 $53,643 $47,856

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

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

Lowest Adjusted Price and Invoice: Audi A4 / S4 A4 2.0T Avant
TrueDelta Adjusted Price Difference: $8,095
TrueDelta Adjusted Invoice Difference: $7,162
Model Year2006200620062006
ModelA4 / S4A4 / S4A4 / S4QX
TrimA4 2.0T AvantA4 3.2 AvantS4 AvantQX56
Body4dr Wagon4dr Wagon4dr Wagon4dr SUV
Engine200hp I4255hp V6340hp V8315hp V8
TransmissionM6M6M6A5
DrivetrainAWDAWDAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)150, 10150, 10215, 10265, 10
Tire (rear if not all the same)235/45-17235/45-17235/40-18265/70-18
Total Price$41,385$44,835$58,120$52,130
Adjustments for Features00-250-2,650
Feature-Adjusted Total Price$41,385$44,835$57,870$49,480
Cost Above Minimum$0$3,450$16,485$0
Total Invoice$38,261$41,401$53,643$47,856
Adjustments for Features00-231-2,433
Feature-Adjusted Total Invoice$38,261$41,401$53,412$45,423
Cost Above Minimum$0$3,140$15,151$0

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Features Comparison: Audi A4 / S4 vs. Infiniti QX

Model Year2006200620062006
ModelA4 / S4A4 / S4A4 / S4QX
TrimA4 2.0T AvantA4 3.2 AvantS4 AvantQX56
Body4dr Wagon4dr Wagon4dr Wagon4dr SUV
Transmission and Drivetrain 
6-speed manual$150$150$150 
5-speed automatic   $900
AWD$1700$1700$1700 
RWD   $0
Accessories 
Power flip-out rear side windows   $125
Power liftgate   $350
Power-adjustable pedals   $125
Remote window/roof operation   $15
Tilt steering wheel, power   $200
Tilt/telescoping steering wheel, manual$250$250$250 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0 $0
Rearview camera   $200
Rollover sensor   $50
Side curtain airbags$350$350$350 
Side curtain airbags, three rows   $500
Cargo Management 
Aluminum roof rails$250$250$250 
Cargo area partition net$40$40$40 
Cargo cover$75$75$75 
Overhead console storage compartments   $100
Overhead sunglass holder   $25
Rear seat pass-through$100$100$100 
Removable second-row console   $200
Roof rack   $300
Ski sack$50$50$50 
Storage compartment under front seat(s)$50$50  
Climate Control 
Heated windshield washer nozzles$15$15$15 
Rain-sensing wipers$175$175$175 
Rear air vents with manual controls   $150
Rear HVAC unit   $400
Variable intermittent wipers   $75
Exterior 
Bodyside cladding   $350
Bodyside moldings$75$75$75 
Deep-tinted rear windows   $275
Running boards   $350
Tow hook(s), front   $40
Wheel-lip moldings   $75
Infotainment 
CD changer, in-dash   $325
CD changer, remote$200$200$200 
MP3-compatible player   $50
Rear seat audio controls   $25
Satellite radio  $200$200
Instruments, Lights, and Mirrors 
Analog clock   $25
Fog light, rear$100$100$100 
Headlight washers  $50 
Steering-linked headlights$150$150$150 
Transmission temperature gauge   $75
Seats and Interior Trim 
Folding passenger seat   $150
Folding third row seats   $600
Manual lumbar adjuster, passenger seat   $50
Manual recliner, second row seats   $75
Manual thigh support length adjuster, driver seat  $50 
Power 4-way lumbar adjuster, driver seat$150$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150$150 
Power lumbar adjuster, driver seat   $100
Suspension, Wheels, and Tires 
Alloy wheels$350$350$350 
Auto-leveling rear shocks   $200
Polished alloy wheels   $350
Ultra-sport suspension (upgrade)  $0 
Total Value of Features$4,380$4,380$4,630$7,030
Value of Feature Adjustments$0$0$250$2,650
Value of Feature Adjustments00-231-2,433

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Specifications Comparison: Audi A4 / S4 vs. Infiniti QX

Model Year20062006
ModelA4 / S4QX
Body4dr Wagon4dr SUV
Wheelbase104.3 in123.2 in
Length180.6 in206.9 in
Width69.8 in78.8 in
Height56.2 in77.0 in
Curb Weight3,672 lb.5,369 lb.
Fuel Capacity16.6 gal.28.0 gal.
Row 1 Headroom38.4 in41.0 in
Row 1 Shoulder Room55.1 in65.1 in
Row 1 Hip Room0.0 in61.3 in
Row 1 Legroom41.3 in41.8 in
Row 2 Headroom37.6 in40.0 in
Row 2 Shoulder Room53.4 in64.5 in
Row 2 Hip Room0.0 in60.1 in
Row 2 Legroom34.3 in41.9 in
Row 3 Headroom0.0 in35.9 in
Row 3 Shoulder Room0.0 in63.7 in
Row 3 Hip Room0.0 in48.8 in
Row 3 Legroom0.0 in32.2 in
Cargo Volume,
Minimum
27.8 ft320.0 ft3
Cargo Volume,
Behind R2
27.861.2 ft3
Cargo Volume,
Maximum
59.0 ft397.1 ft3

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Option Package Details
Audi A4 / S4 A4 2.0T Avant

Technology Package
FeatureValueRequested?
Automatic headlights125Yes
Steering-linked headlights150No
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Total Requested82585%
Total Not Requested15015%
Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100Yes
Rain-sensing wipers100No
235/45HR17 tires400No
Auto-dimming rearview mirror150Yes
Automatic headlights125Yes
Auto-dimming driver-side mirror75Yes
Compass0Yes
Power-folding mirrors50Yes
Auto-dimming passenger-side mirror75Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Total Requested107568%
Total Not Requested50032%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100No
Ski sack50No
Total Requested20057%
Total Not Requested15043%

Option Package Details
Audi A4 / S4 A4 3.2 Avant

Technology Package
FeatureValueRequested?
Automatic headlights125Yes
Steering-linked headlights150No
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Total Requested82585%
Total Not Requested15015%
Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100Yes
Rain-sensing wipers100No
235/45HR17 tires400No
Auto-dimming rearview mirror150Yes
Automatic headlights125Yes
Auto-dimming driver-side mirror75Yes
Compass0Yes
Power-folding mirrors50Yes
Auto-dimming passenger-side mirror75Yes
Total Requested77561%
Total Not Requested50039%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100No
Ski sack50No
Total Requested20057%
Total Not Requested15043%

Option Package Details
Audi A4 / S4 S4 Avant

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Sunroof900Yes
Universal garage door opener100Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150No
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Compass0Yes
Power-folding mirrors50Yes
Auto-dimming passenger-side mirror75Yes
Total Requested187588%
Total Not Requested25012%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100No
Ski sack50No
Total Requested20057%
Total Not Requested15043%

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