Porsche Boxster Porsche Boxster 2008 Audi A4 / S4 Audi A4 / S4 2009

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Porsche Boxster vs. Audi A4 / S4 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.

Porsche Boxster vs. Audi A4 / S4 Invoice Comparison

Lowest Total Price: $60,245

Porsche Boxster   
Difference: $5,655

Lowest Total Invoice: $52,335

Porsche Boxster   
Difference: $9,101

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082009
ModelBoxsterA4 / S4
TrimBaseS4 Cabriolet
Body2dr Convertible2dr Convertible
Base Price $45,800 $57,125
Base Invoice $39,923 $53,127
Xenon HID headlights 1,090  
Adaptive Sports Seats 3,055  
Auto-dimming rearview mirror 690  
Metallic paint (extra cost) 690 475
Heated front seats 480  
Carbon fiber / leather-wrapped steering wheel 1,360  
Floor mats 115  
Automatic climate control, front 550  
Navigation system 3,110 1,950
Obstacle detection, rear 530 350
Wood trim 890 400
CD changer, remote 650  
Wind blocker, small 375  
Convenience Package   2,275
6-speed shiftable automatic   1,200
Xenon HID headlights 927  
Adaptive Sports Seats 2,597  
Auto-dimming rearview mirror 587  
Metallic paint (extra cost) 587 443
Heated front seats 408  
Carbon fiber / leather-wrapped steering wheel 1,156  
Floor mats 98  
Automatic climate control, front 468  
Navigation system 2,644 1,813
Obstacle detection, rear 451 325
Wood trim 757 373
CD changer, remote 553  
Wind blocker, small 319  
Convenience Package   2,115
6-speed shiftable automatic   1,115
Options (change) 13,585 6,650
Options (change) 11,552 6,184
Destination 860 825
Gas Tax 0 1,300
Total Price $60,245 $65,900
Total Invoice $52,335 $61,436

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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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TrueDelta Value Comparison: Porsche Boxster vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $1,285
TrueDelta Adjusted Invoice Difference: $5,027
Model Year20082009
ModelBoxsterA4 / S4
TrimBaseS4 Cabriolet
Body2dr Convertible2dr Convertible
Engine245hp H6340hp V8
TransmissionM5T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)20/29 MPG14/21 MPG
Audio (watts, speakers)50, 4215, 9
Tire (rear if not all the same)205/55-17235/40-18
Total Price$60,245$65,900
Adjustments for Features0-4,370
Feature-Adjusted Total Price$60,245$61,530
Total Invoice$52,335$61,436
Adjustments for Features0-4,074
Feature-Adjusted Total Invoice$52,335$57,362

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Features Comparison: Porsche Boxster vs. Audi A4 / S4

Model Year20082009
ModelBoxsterA4 / S4
TrimBaseS4 Cabriolet
Body2dr Convertible2dr Convertible
Transmission and Drivetrain 
5-speed manual$0 
6-speed manually-shiftable automatic $1100
RWD$0 
AWD $1700
Accessories 
Power rear side windows $200
Wind blocker $300
Wind blocker, small$100 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Auto-raising roll bars / headrests $500
Brake assist $50
Full-size spare tire $225
Knee airbag, driver $75
Knee airbag, passenger $75
Roll bar$200 
Cargo Management 
Cargo net$40 
Rear seat pass-through $100
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Automatic air recirculation $100
Dual-zone climate control $125
Water-repellent front-door glass$15 
Engine / Motor 
Mid-engine configuration$0 
Exterior 
Bodyside moldings $75
Retractable rear spoiler$400 
Infotainment 
MP3-compatible player $50
Satellite radio $200
SD Card slot $25
Instruments, Lights, and Mirrors 
Automatic headlights $125
Compass $0
Steering-linked headlights $150
Turn signals on or near mirrors $25
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel$150 
Center armrest(s), second row $50
Leather-wrapped steering wheel $150
Manual height adjuster, driver seat $50
Manual thigh support length adjuster, driver seat $50
Metal pedals$75 
No leather in second row$-300 
Power 4-way lumbar adjuster, passenger seat $150
Power fore-aft adjuster, driver seat$100 
Power height adjuster, driver seat$100 
Power recliner, driver seat$100 
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Power tilt adjuster, driver seat$100 
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$1,480$5,850
Value of Feature Adjustments$0$4,370
Value of Feature Adjustments0-4,074

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Specifications Comparison: Porsche Boxster vs. Audi A4 / S4

Model Year20082009
ModelBoxsterA4 / S4
Body2dr Convertible2dr Convertible
Wheelbase95.1 in104.3 in
Length170.4 in180.0 in
Width70.9 in70.0 in
Height51.0 in54.8 in
Curb Weight2,855 lb.4,211 lb.
Fuel Capacity17.0 gal.16.6 gal.
Row 1 Headroom38.4 in38.0 in
Row 1 Shoulder Room51.7 in53.0 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in41.3 in
Row 2 Headroom0.0 in36.3 in
Row 2 Shoulder Room0.0 in45.1 in
Row 2 Legroom0.0 in32.4 in
Cargo Volume9.9 ft38.9 ft3

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Option Package Details
Porsche Boxster

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100No
Power height adjuster, driver seat50No
Power tilt adjuster, driver seat100No
Power 4-way lumbar adjuster, driver seat150Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested70052%
Total Not Requested65048%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote200Yes
SD Card slot25No
Total Requested80097%
Total Not Requested253%
6-speed manually-shiftable automatic
FeatureValueRequested?
6-speed manually-shiftable automatic0Yes
1300 Gas-Guzzler Tax0No
4.2L V8
DOHC-5v
340 hp@6800
302 lb-ft@3500
1000Yes
Steering-wheel-mounted transmission controls100No
Total Requested100091%
Total Not Requested1009%
Convenience Package
FeatureValueRequested?
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125No
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75Yes
Total Requested70053%
Total Not Requested62547%

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