Audi A4 / S4 Audi A4 / S4 2006 BMW Z4 BMW Z4 2008

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Audi A4 / S4 vs. BMW Z4 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. BMW Z4 Invoice Comparison

Lowest Total Price: $47,350

BMW Z4 3.0i   
Difference: $4,085

Lowest Total Invoice: $10,425

BMW Z4 M Roadster   
Difference: $37,062

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006200820082008
ModelA4 / S4A4 / S4Z4Z4Z4
TrimA4 3.0 CabrioletS4 Cabriolet3.0i3.0siM Roadster
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Base Price $45,490 $54,640 $36,700 $42,700 $52,400
Base Invoice $42,010 $50,256 $33,945 $39,465 $4,390
Premium Package 1,825 1,775 2,900 2,100 2,950
Metallic paint (extra cost) 450 450 475 475 475
Tire-pressure monitor 250 250      
Navigation system 1,950 1,950 1,800 1,800 1,800
Sport suspension (upgrade) 250        
Bluetooth cell phone link 500        
Audio controls on steering wheel   150      
Leather seating surfaces     1,150    
Sport Package     1,300 1,300  
Power convertible top     750 750  
Xenon HID headlights     700 700  
Heated front seats     500 500 500
Headlight washers     250 250  
Wood trim     0 0 0
Premium Package 1,661 1,615 2,635 1,910 2,685
Metallic paint (extra cost) 410 410 430 430 430
Tire-pressure monitor 228 228      
Navigation system 1,775 1,775 1,640 1,640 1,640
Sport suspension (upgrade) 228        
Bluetooth cell phone link 455        
Audio controls on steering wheel   137      
Leather seating surfaces     1,045    
Sport Package     1,185 1,185  
Power convertible top     685 685  
Xenon HID headlights     635 635  
Heated front seats     455 455 455
Headlight washers     230 230  
Wood trim     0 0 0
Options (change) 5,225 4,575 9,825 7,875 5,725
Options (change) 4,757 4,165 8,940 7,170 5,210
Destination 720 720 825 825 825
Gas Tax 0 1,700 0 0 0
Total Price $51,435 $61,635 $47,350 $51,400 $58,950
Total Invoice $47,487 $56,841 $43,710 $47,460 $10,425

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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. BMW Z4

Lowest Adjusted Price: BMW Z4 3.0i
Lowest Adjusted Invoice: BMW Z4 M Roadster
TrueDelta Adjusted Price Difference: $455
TrueDelta Adjusted Invoice Difference: $33,751
Model Year20062006200820082008
ModelA4 / S4A4 / S4Z4Z4Z4
TrimA4 3.0 CabrioletS4 Cabriolet3.0i3.0siM Roadster
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Engine220hp V6340hp V8215hp I6255hp I6330hp I6
TransmissionT5M6M6M6M6
DrivetrainAWDAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)180, 9180, 9?, 10430, 10430, 10
Tire (rear if not all the same)235/45-17235/40-18225/40-18225/40-18225/45-18
Total Price$51,435$61,635$47,350$51,400$58,950
Adjustments for Features-3,630-2,7300-275-225
Feature-Adjusted Total Price$47,805$58,905$47,350$51,125$58,725
Cost Above Minimum$0$11,100$0$3,775$11,375
Total Invoice$47,487$56,841$43,710$47,460$10,425
Adjustments for Features-3,351-2,5180-254-40
Feature-Adjusted Total Invoice$44,136$54,323$43,710$47,206$10,385
Cost Above Minimum$0$10,187$33,325$36,821$0

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Features Comparison: Audi A4 / S4 vs. BMW Z4

Model Year20062006200820082008
ModelA4 / S4A4 / S4Z4Z4Z4
TrimA4 3.0 CabrioletS4 Cabriolet3.0i3.0siM Roadster
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000    
6-speed manual $150$150$150$150
AWD$1700$1700   
RWD  $0$0$0
Accessories 
Power rear side windows$200$200   
Universal garage door opener$100$100   
Wind blocker$300$300   
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests$500$500   
Roll bar  $200$200$200
Tires, run-flat  $150$150 
Cargo Management 
Rear seat pass-through$100$100   
Ski sack$50$50   
Climate Control 
Dual-zone climate control$125$125   
Rain-sensing wipers  $175$175$175
Variable intermittent wipers$75$75   
Drivetrain 
Limited-slip rear differential    $300
Exterior 
Bodyside moldings$75$75   
Bright-finished exhaust tip(s)$25$25 $25$25
Infotainment 
Aux input  $50$50$50
Bluetooth cell phone link$100 $100$100$100
CD changer, remote$200$200   
CD player  $125$125$125
MP3-compatible player  $50$50$50
Surround sound   $250$250
Telematics service, such as OnStar  $200$200$200
Instruments, Lights, and Mirrors 
Compass$0$0   
Fog light, rear$100$100   
Illuminated visor mirror, driver$50$50   
Illuminated visor mirror, passenger$50$50   
Power-folding mirrors$50$50   
Visor mirror, driver  $10$10$10
Visor mirror, passenger  $10$10$10
Seats and Interior Trim 
Center armrest(s), second row$50$50   
Manual thigh support length adjuster, driver seat $50$50$50$50
Manual thigh support length adjuster, passenger seat  $50$50$50
Power 4-way lumbar adjuster, driver seat$150$150   
Power 4-way lumbar adjuster, passenger seat$150$150   
Suspension, Wheels, and Tires 
Electronic systems calibration selector  $200$200 
Sport suspension (upgrade)$0 $0$0$0
Ultra-sport suspension (upgrade) $0   
Total Value of Features$5,150$4,250$1,520$1,795$1,745
Value of Feature Adjustments$3,630$2,730$0$275$225
Value of Feature Adjustments-3,351-2,5180-254-40

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Specifications Comparison: Audi A4 / S4 vs. BMW Z4

Model Year20062008
ModelA4 / S4Z4
Body2dr Convertible2dr Convertible
Wheelbase104.5 in98.2 in
Length180.0 in161.1 in
Width70.0 in70.1 in
Height54.8 in51.1 in
Curb Weight3,683 lb.3,087 lb.
Fuel Capacity16.6 gal.14.5 gal.
Row 1 Headroom38.0 in37.3 in
Row 1 Shoulder Room53.0 in52.5 in
Row 1 Legroom41.3 in42.0 in
Row 2 Headroom36.3 in0.0 in
Row 2 Shoulder Room45.1 in0.0 in
Row 2 Legroom32.4 in0.0 in
Cargo Volume8.9 ft38.5 ft3

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Option Package Details
Audi A4 / S4 A4 3.0 Cabriolet

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100No
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Wind blocker300No
Automatic headlights125Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75Yes
Auto-dimming rearview mirror150Yes
Total Requested132575%
Total Not Requested45025%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100No
Automatic headlights125Yes
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Wind blocker300No
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75Yes
Auto-dimming rearview mirror150Yes
Total Requested82565%
Total Not Requested45035%

Option Package Details
BMW Z4 3.0i

Leather seating surfaces
FeatureValueRequested?
Leather seating surfaces900Yes
Center armrest(s), front row75Yes
Upholstered door panels, leather250No
No leather in second row-300No
Total Requested975105%
Total Not Requested-50-5%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Trip computer150Yes
Total Requested750100%
Total Not Requested00%
Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Front sport buckets100Yes
225/40WR18 tires200No
255/35WR18 tires200No
Electronic systems calibration selector200No
Total Requested35037%
Total Not Requested60063%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Auto-dimming rearview mirror150Yes
Trip computer150Yes
Telematics service, such as OnStar200No
Bluetooth cell phone link100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Automatic air recirculation100No
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested165085%
Total Not Requested30015%

Option Package Details
BMW Z4 3.0si

Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Front sport buckets100Yes
225/40WR18 tires200No
255/35WR18 tires200No
Electronic systems calibration selector200No
Total Requested35037%
Total Not Requested60063%
Premium Package
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Telematics service, such as OnStar200No
Bluetooth cell phone link100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested130087%
Total Not Requested20013%

Option Package Details
BMW Z4 M Roadster

Premium Package
FeatureValueRequested?
Cruise control150Yes
Surround sound250No
THX-certified, 430W, 10 speakers (with subwoofer)350No
Telematics service, such as OnStar200No
Bluetooth cell phone link100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Auto-dimming rearview mirror150Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested145064%
Total Not Requested80036%

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