Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2008 Infiniti Q50 Infiniti Q50 2015

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

Join Us

Audi A4 / S4 / RS4 vs. Infiniti Q50 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 / RS4 vs. Infiniti Q50 Invoice Comparison

Lowest Total Price: $49,465

Infiniti Q50 S 3.7   
Difference: $7,370

Lowest Total Invoice: $45,992

Infiniti Q50 S 3.7   
Difference: $7,014

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082015
ModelA4 / S4 / RS4Q50
TrimS4S 3.7
Body4dr Sedan4dr Sedan
Base Price $48,610 $43,650
Base Invoice $45,207 $40,595
6-speed shiftable automatic 1,100  
Metallic paint (extra cost) 475  
Bluetooth cell phone link 500  
iPod integration 0  
Navigation system 1,950  
Convenience Package 2,125  
Cargo Package   200
Navigation Package   1,400
Temporary spare tire   200
Rear spoiler   860
Folding second row seats   450
AWD   1,800
6-speed shiftable automatic 1,025  
Metallic paint (extra cost) 443  
Bluetooth cell phone link 466  
iPod integration 0  
Navigation system 1,813  
Convenience Package 1,977  
Cargo Package   149
Navigation Package   1,302
Temporary spare tire   186
Rear spoiler   762
Folding second row seats   419
AWD   1,674
Options (change) 6,150 4,910
Options (change) 5,724 4,492
Destination 775 905
Gas Tax 1,300 0
Total Price $56,835 $49,465
Total Invoice $53,006 $45,992

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 Audi A4 / S4 / RS4 dealer quotes or Infiniti Q50 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 / RS4 vs. Infiniti Q50

Lowest Adjusted Price and Invoice: Infiniti Q50 S 3.7
TrueDelta Adjusted Price Difference: $8,785
TrueDelta Adjusted Invoice Difference: $8,330
Model Year20082015
ModelA4 / S4 / RS4Q50
TrimS4S 3.7
Body4dr Sedan4dr Sedan
Engine340hp V8328hp V6
TransmissionT6T7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)14/21 MPG19/27 MPG
Audio (watts, speakers)215, 10?, 14
Tire (rear if not all the same)235/40-18245/40-19
Total Price$56,835$49,465
Adjustments for Features0-1,415
Feature-Adjusted Total Price$56,835$48,050
Total Invoice$53,006$45,992
Adjustments for Features0-1,316
Feature-Adjusted Total Invoice$53,006$44,676

Return to top

Features Comparison: Audi A4 / S4 / RS4 vs. Infiniti Q50

Model Year20082015
ModelA4 / S4 / RS4Q50
TrimS4S 3.7
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed manually-shiftable automatic $1200
AWD$1700$1700
Accessories 
Heated steering wheel $100
Proximity key $250
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Full-size spare tire$225 
Rearview camera $200
Temporary spare tire $150
Tires, run-flat $150
Torque vectoring, brake-based $100
Cargo Management 
Cargo mat $40
Overhead sunglass holder $25
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Automatic air recirculation$100 
Heated windshield washer nozzles$15 
Rain-sensing wipers$175 
Rear air vents $100
Variable intermittent wipers $75
Exterior 
Black grille (optional) $0
Bodyside moldings$75 
Self-repairing paint $0
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
CD player $125
Concierge Services - 4 year subscription $200
HD radio $50
iPod integration$100 
SD Card slot$25 
SMS text-to-speech reader $25
Surround sound $250
Telematics service, such as OnStar $200
Traffic + travel information $25
USB port $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 
Interior ambient lighting$150 
LED headlights $1000
Power-folding mirrors$50 
Steering-linked headlights$150 
Xenon HID headlights$500 
Seats and Interior Trim 
Leather door panel trim$250 
Manual thigh support length adjuster, passenger seat $50
Memory system, driver seat$200 
Metal pedals $75
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Power fore-aft adjuster, driver seat $100
Power height adjuster, driver seat $100
Power lumbar adjuster, driver seat $100
Power recliner, driver seat $100
Power seatback bolsters, driver seat $100
Power tilt adjuster, driver seat $100
Suspension, Wheels, and Tires 
Performance steering system (optional) $0
Sport suspension (upgrade) $0
Ultra-sport suspension (upgrade)$0 
Total Value of Features$5,515$6,930
Value of Feature Adjustments$0$1,415
Value of Feature Adjustments0-1,316

Return to top

Specifications Comparison: Audi A4 / S4 / RS4 vs. Infiniti Q50

Model Year20082015
ModelA4 / S4 / RS4Q50
Body4dr Sedan4dr Sedan
Wheelbase104.3 in112.2 in
Length180.6 in188.3 in
Width69.8 in71.8 in
Height56.2 in56.8 in
Curb Weight3,902 lb.3,748 lb.
Fuel Capacity16.6 gal.20.0 gal.
Row 1 Headroom38.4 in40.2 in
Row 1 Shoulder Room55.1 in56.7 in
Row 1 Hip Room0.0 in53.2 in
Row 1 Legroom41.3 in44.5 in
Row 2 Headroom37.2 in37.5 in
Row 2 Shoulder Room53.4 in56.1 in
Row 2 Hip Room0.0 in52.5 in
Row 2 Legroom34.3 in35.1 in
Cargo Volume13.4 ft313.5 ft3

Return to top

Option Package Details
Audi A4 / S4 / RS4 S4

Convenience Package
FeatureValueRequested?
Memory system, driver seat200No
Bose, 215W, 10 speakers (with subwoofer)350No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75No
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested37527%
Total Not Requested100073%

Option Package Details
Infiniti Q50 S 3.7

Rear spoiler
FeatureValueRequested?
Rear spoiler200Yes
Black grille (optional)0No
Total Requested200100%
Total Not Requested00%
Folding second row seats
FeatureValueRequested?
Folding second row seats300Yes
Second-row 2-section 3-person split bench100No
Total Requested30075%
Total Not Requested10025%
AWD
FeatureValueRequested?
AWD0Yes
Heated steering wheel100No
Total Requested00%
Total Not Requested100100%
Cargo Package
FeatureValueRequested?
Cargo net40Yes
Cargo mat40No
First-aid kit15No
Total Requested4042%
Total Not Requested5558%
Navigation Package
FeatureValueRequested?
Navigation system600Yes
Telematics service, such as OnStar200No
Voice control for nav and audio75No
Traffic + travel information25No
Remote app25No
Total Requested60065%
Total Not Requested32535%

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 Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.