Audi A4 / S4 Audi A4 / S4 2021 Infiniti Q40 Infiniti Q40 2015

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

Join Us

Audi A4 / S4 vs. Infiniti Q40 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 Q40 Invoice Comparison

Lowest Total Price: $40,355

Infiniti Q40   
Difference: $13,765

Calculate Payments

  Down Payment Interest Rate Term
Model Year20212015
ModelA4 / S4Q40
TrimS4Base
Body4dr Sedan4dr Sedan
Base Price $49,900 $33,950
Navigation and Telematics Package 2,600  
Metallic paint (extra cost) 575  
Navigation Package   2,900
Sunroof   1,000
AWD   1,600
Navigation and Telematics Package 2,418  
Metallic paint (extra cost) 536  
Navigation Package   2,697
Sunroof   930
AWD   1,487
Options (change) 3,175 5,500
Options (change) 2,954 5,114
Destination 1,045 905
Total Price $54,120 $40,355

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 dealer quotes or Infiniti Q40 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. Infiniti Q40

Lowest Adjusted Price: Infiniti Q40
Lowest Adjusted Invoice: Audi A4 / S4 S4
TrueDelta Adjusted Price Difference: $7,125
TrueDelta Adjusted Invoice Difference: $34,085
Model Year20212015
ModelA4 / S4Q40
TrimS4Base
Body4dr Sedan4dr Sedan
Engine349hp V6328hp V6
TransmissionT8T7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)20/28 MPG18/25 MPG
Audio (watts, speakers)755, 19?, 10
Tire (rear if not all the same)245/40-18225/55-17
Total Price$54,120$40,355
Adjustments for Features-6,6400
Feature-Adjusted Total Price$47,480$40,355

Return to top

Features Comparison: Audi A4 / S4 vs. Infiniti Q40

Model Year20212015
ModelA4 / S4Q40
TrimS4Base
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
7-speed manually-shiftable automatic $1200
AWD$1700$1700
Accessories 
Remote app$25 
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Automatic braking, high-speed or partial$200 
Automatic braking, low-speed$200 
Blind spot warning system$200 
Collision preparation system, rear$100 
Cross-traffic warning, rear$100 
Driver drowsiness monitor$150 
Forward collision warning$200 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Pedestrian detection$50 
Radar- or camera-based collision preparation system$0 
Rollover sensor$50 
Secondary collision brake assist$25 
Torque vectoring, brake-based$100 
Vehicle exit assist$25 
Cargo Management 
Air-conditioned storage compartment$50 
Overhead sunglass holder $25
Rear seat pass-through $100
Climate Control 
Automatic air recirculation$100 
Dual-zone climate control$125 
Heated windshield washer nozzles$15 
Rain-sensing wipers$175 
Rear air vents $100
Rear air vents with automatic controls$250 
Variable intermittent wipers $75
Engine / Motor 
Automatic start / stop$150 
Regenerative braking$0 
Exterior 
Body kit$0 
Rear spoiler$200 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
CD player $125
CD player, remote$100 
Concierge Services - 4 year subscription $200
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
SD Card slot$25 
Telematics service, such as OnStar$200 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming driver-side mirror$75 
Auto-dimming passenger-side mirror$75 
Boost gauge$75 
Fog light, rear$100 
Interior ambient lighting$150 
Large color reconfigurable instrument cluster display$250 
LED headlights$1000 
Power-folding mirrors$50 
Turn signals on or near mirrors$25 
Xenon HID headlights $500
Seats and Interior Trim 
Door sill trim plates $100
Folding second row seats$300 
Illuminated door sill trim plates$200 
Manual lumbar adjuster, driver seat $50
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Massage, driver seat$100 
Massage, passenger seat$100 
Memory system, driver seat$200 
Metal pedals$75 
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Synthetic suede door panel trim$250 
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200 
Sport suspension (upgrade)$0 
Transmission 
Launch control$100 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$10,855$4,215
Value of Feature Adjustments$6,640$0
Value of Feature Adjustments-4910

Return to top

Specifications Comparison: Audi A4 / S4 vs. Infiniti Q40

Model Year20212015
ModelA4 / S4Q40
Body4dr Sedan4dr Sedan
Wheelbase111.0 in112.2 in
Length187.5 in187.9 in
Width72.7 in69.8 in
Height56.2 in57.2 in
Curb Weight3,847 lb.3,821 lb.
Fuel Capacity15.3 gal.20.0 gal.
Row 1 Headroom37.3 in40.5 in
Row 1 Shoulder Room55.9 in55.6 in
Row 1 Hip Room0.0 in55.1 in
Row 1 Legroom41.3 in43.9 in
Row 2 Headroom37.4 in37.7 in
Row 2 Shoulder Room54.5 in55.2 in
Row 2 Hip Room0.0 in53.7 in
Row 2 Legroom35.7 in34.7 in
Cargo Volume12.0 ft313.5 ft3

Return to top

Option Package Details
Audi A4 / S4 S4

Navigation and Telematics Package
FeatureValueRequested?
Large color reconfigurable instrument cluster display250No
Handwriting recognition200No
Remote app25No
Speed limit information0No
4G LTE connectivity0No
Navigation system600Yes
DVD-compatible player0Yes
Voice control for nav and audio75Yes
Media drive15No
Traffic + travel information25Yes
In-vehicle Internet150No
Wi-Fi hotspot50No
Total Requested70050%
Total Not Requested69050%

Option Package Details
Infiniti Q40

Navigation Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Bose, 10 speakers (with subwoofer)350No
Voice control for nav and audio100Yes
Traffic + travel information25Yes
Bluetooth audio streaming25Yes
Total Requested100074%
Total Not Requested35026%

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.