Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2007 Buick Regal Buick Regal 2015

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Audi A4 / S4 / RS4 vs. Buick Regal 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. Buick Regal Invoice Comparison

Lowest Total Price: $39,310

Buick Regal GS   
Difference: $15,935

Lowest Total Invoice: $37,695

Buick Regal GS   
Difference: $13,332

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  Down Payment Interest Rate Term
Model Year200720072015
ModelA4 / S4 / RS4A4 / S4 / RS4Regal
TrimS4RS4GS
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $47,500 $66,000 $37,385
Base Invoice $43,759 $60,594 $35,890
Metallic paint (extra cost) 475    
Heated front seats 450    
Bluetooth cell phone link 500    
Tire-pressure monitor 250    
Navigation system 1,950    
Convenience Package 1,000    
Obstacle detection, rear 350    
Rear side airbags 350 350  
Premium Package   4,700  
Sunroof     1,000
Metallic paint (extra cost) 432    
Heated front seats 410    
Bluetooth cell phone link 455    
Tire-pressure monitor 228    
Navigation system 1,775    
Convenience Package 910    
Obstacle detection, rear 319    
Rear side airbags 319 319  
Premium Package   4,277  
Sunroof     880
Options (change) 5,325 5,050 1,000
Options (change) 4,848 4,596 880
Destination 720 720 925
Gas Tax 1,700 2,100 0
Total Price $55,245 $73,870 $39,310
Total Invoice $51,027 $68,010 $37,695

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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 / RS4 dealer quotes or Buick Regal dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Audi A4 / S4 / RS4 vs. Buick Regal

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $17,045
TrueDelta Adjusted Invoice Difference: $14,396
Model Year200720072015
ModelA4 / S4 / RS4A4 / S4 / RS4Regal
TrimS4RS4GS
Body4dr Sedan4dr Sedan4dr Sedan
Engine340hp V8420hp V8259hp I4
TransmissionM6M6T6
DrivetrainAWDAWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)150, 10215, 10?, 9
Tire (rear if not all the same)235/40-18255/35-19245/40-19
Total Price$55,245$73,870$39,310
Adjustments for Features0-1,350-1,110
Feature-Adjusted Total Price$55,245$72,520$38,200
Cost Above Minimum$0$17,275$0
Total Invoice$51,027$68,010$37,695
Adjustments for Features0-1,243-1,064
Feature-Adjusted Total Invoice$51,027$66,767$36,631
Cost Above Minimum$0$15,740$0

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Features Comparison: Audi A4 / S4 / RS4 vs. Buick Regal

Model Year200720072015
ModelA4 / S4 / RS4A4 / S4 / RS4Regal
TrimS4RS4GS
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150$150 
6-speed manually-shiftable automatic  $1100
AWD$1700$1700 
FWD  $0
Accessories 
AC power outlet  $100
Heated steering wheel  $100
Proximity key  $250
Remote app  $25
Remote start  $150
Sunshade, rear, power $225 
Sunshades, second row $125 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0 
Obstacle detection, front  $150
Rearview camera  $200
Rollover sensor  $50
Vehicle health reports  $0
Cargo Management 
Ski sack$50$50 
Storage compartment under front seat(s)$50$50 
Climate Control 
Heated windshield washer nozzles$15$15 
Rain-sensing wipers$175$175 
Rear air vents  $100
Variable intermittent wipers  $75
Exterior 
Active grille shutters  $0
Body kit $0$0
Bodyside moldings$75$75 
Infotainment 
4G LTE connectivity  $0
App support  $0
Aux input  $50
Bluetooth audio streaming  $25
CD changer, remote$200$200 
CD player  $125
Satellite radio $200$200
Siri Eyes Free support  $0
SMS text-to-speech reader  $25
Telematics service, such as OnStar, with navigation  $225
Voice control for external devices  $0
Voice control for nav and audio  $100
Wi-Fi hotspot  $50
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75 
Auto-dimming passenger-side mirror$75$75 
Fog light, rear$100$100 
Fog lights$125$125 
Headlight washers$50$50 
Large color reconfigurable instrument cluster display  $250
Performance meter  $150
Power-folding mirrors$50$50 
Steering-linked headlights$150$150 
Seats and Interior Trim 
Aluminum trim$100  
Carbon fiber trim $200 
Heated second row seats $200 
Manual thigh support length adjuster, driver seat$50$50 
Memory system, driver seat$200$200 
Power 4-way lumbar adjuster, driver seat$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150 
Power fore-aft adjuster, driver seat  $100
Power height adjuster, driver seat  $100
Power lumbar adjuster, driver seat  $100
Power lumbar adjuster, passenger seat  $100
Power recliner, driver seat  $100
Power tilt adjuster, driver seat  $100
Suspension, Wheels, and Tires 
Adaptive dampers - electrical  $500
Electronic systems calibration selector  $200
Hydraulically cross-linked dampers $500 
Sport suspension (upgrade)  $0
Ultra-sport suspension (upgrade)$0$0 
Total Value of Features$3,690$5,040$4,800
Value of Feature Adjustments$0$1,350$1,110
Value of Feature Adjustments0-1,243-1,064

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Specifications Comparison: Audi A4 / S4 / RS4 vs. Buick Regal

Model Year20072015
ModelA4 / S4 / RS4Regal
Body4dr Sedan4dr Sedan
Wheelbase104.3 in107.8 in
Length180.6 in190.2 in
Width69.8 in73.1 in
Height56.2 in58.4 in
Curb Weight3,550 lb.3,693 lb.
Fuel Capacity16.6 gal.18.0 gal.
Row 1 Headroom38.4 in38.8 in
Row 1 Shoulder Room55.1 in56.7 in
Row 1 Hip Room0.0 in55.4 in
Row 1 Legroom41.3 in42.1 in
Row 2 Headroom37.2 in36.8 in
Row 2 Shoulder Room53.4 in54.4 in
Row 2 Hip Room0.0 in52.3 in
Row 2 Legroom34.3 in37.3 in
Cargo Volume13.4 ft314.2 ft3

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Option Package Details
Audi A4 / S4 / RS4 S4

Convenience Package
FeatureValueRequested?
Memory system, driver seat200No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100No
Automatic headlights125Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75No
Compass0Yes
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested37537%
Total Not Requested65063%

Option Package Details
Audi A4 / S4 / RS4 RS4

Premium Package
FeatureValueRequested?
Navigation system600Yes
Heated second row seats200No
CD changer, remote-125No
Universal garage door opener100Yes
Rain-sensing wipers100No
Sunshades, second row125No
Sunshade, rear, power225No
Memory system, driver seat200No
Satellite radio200Yes
Bluetooth cell phone link100Yes
Bose, 215W, 10 speakers (with subwoofer)350No
Auto-dimming rearview mirror150Yes
Automatic headlights125Yes
Auto-dimming driver-side mirror75No
Compass0Yes
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested127550%
Total Not Requested127550%

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