BMW 3-Series BMW 3-Series 2018 Porsche Boxster Porsche Boxster 2007

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

Join Us

BMW 3-Series vs. Porsche Boxster 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.

BMW 3-Series vs. Porsche Boxster Invoice Comparison

Lowest Total Price: $78,815

Porsche Boxster S   
Difference: $2,180

Lowest Total Invoice: $68,357

Porsche Boxster S   
Difference: $7,578

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182007
Model3-SeriesBoxster
TrimM3S
Body4dr Sedan2dr Convertible
Base Price $65,500 $55,500
Base Invoice $61,595 $48,415
Metallic paint (extra cost) 550  
Leather seating surfaces 950  
Obstacle detection, rear 750 530
Wood trim 0 890
Ceramic brake rotors 8,150 8,150
255/35YR19 1,200  
7-speed automated manual 2,900  
Sunroof 0  
Auto-dimming rearview mirror   690
Adaptive Sports Seats   3,055
Sport Chrono Package   920
Adaptive dampers - electrical   1,990
Navigation system   3,070
Audio controls on steering wheel   990
Automatic climate control, front   550
Heated front seats   480
Floor mats   115
Xenon HID headlights   1,090
Metallic paint (extra cost) 505  
Leather seating surfaces 875  
Obstacle detection, rear 690 451
Wood trim 0 757
Ceramic brake rotors 7,500 6,928
255/35YR19 1,105  
7-speed automated manual 2,670  
Sunroof 0  
Auto-dimming rearview mirror   587
Adaptive Sports Seats   2,597
Sport Chrono Package   782
Adaptive dampers - electrical   1,692
Navigation system   2,610
Audio controls on steering wheel   842
Automatic climate control, front   468
Heated front seats   408
Floor mats   98
Xenon HID headlights   927
Options (change) 14,500 22,520
Options (change) 13,345 19,147
Destination 995 795
Total Price $80,995 $78,815
Total Invoice $75,935 $68,357

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 BMW 3-Series dealer quotes or Porsche Boxster 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: BMW 3-Series vs. Porsche Boxster

Lowest Adjusted Price: BMW 3-Series M3
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $120
TrueDelta Adjusted Invoice Difference: $5,422
Model Year20182007
Model3-SeriesBoxster
TrimM3S
Body4dr Sedan2dr Convertible
Engine425hp I6295hp H6
TransmissionS7M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)17/24 MPG20/28 MPG
Audio (watts, speakers)600, 16230, 7
Tire (rear if not all the same)255/35-19235/40-18
Total Price$80,995$78,815
Adjustments for Features-2,3000
Feature-Adjusted Total Price$78,695$78,815
Total Invoice$75,935$68,357
Adjustments for Features-2,1560
Feature-Adjusted Total Invoice$73,779$68,357

Return to top

Features Comparison: BMW 3-Series vs. Porsche Boxster

Model Year20182007
Model3-SeriesBoxster
TrimM3S
Body4dr Sedan2dr Convertible
Transmission and Drivetrain 
7-speed automated manual$1200 
6-speed manual $150
RWD$0$0
Accessories 
Hands-free trunk or liftgate$100 
Power rear side windows$200 
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 
Brake assist$50 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Rearview camera$200 
Roll bar $200
Side curtain airbags$350 
Cargo Management 
Air-conditioned storage compartment$50 
Cargo net $40
Climate Control 
Dual-zone climate control$125 
Rear air vents with manual controls$150 
Residual heat$50 
Water-repellent front-door glass $15
Drivetrain 
Active rear differential$500 
Engine / Motor 
Automatic start / stop$150 
Mid-engine configuration $0
Regenerative braking$0 
Exterior 
Black exterior trim (optional)$0 
Painted brake calipers (optional)$0 
Power convertible top $4000
Rear spoiler$200 
Retractable rear spoiler $400
Sport rocker panels (optional)$0 
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
App support$0 
Aux input$50 
Bluetooth audio streaming$25 
Bluetooth cell phone link$100 
DVD-compatible player$0 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
MP3-compatible player$50 
Navigation map updates, three years$0 
S Voice support$0 
Satellite radio$200 
Siri Eyes Free support$0 
Surround sound$250 
Telematics service, such as OnStar$200 
Traffic + travel information$25 
Voice control for external devices$0 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror $75
Automatic headlights$125 
Chronometer $100
Compass$0 
Fog light, rear $100
Fog lights $125
Headlight washers $50
LED headlights$1000 
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Turn signals on or near mirrors$25 
Xenon HID headlights $500
Seats and Interior Trim 
Center armrest(s), second row$50 
Folding second row seats$300 
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Power 4-way lumbar adjuster, passenger seat$150 
Power thigh bolsters, driver seat $100
Power thigh bolsters, passenger seat $100
Suspension, Wheels, and Tires 
Performance steering system (optional)$0 
Sport suspension (upgrade)$0 
Transmission 
Launch control$100 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$8,255$5,955
Value of Feature Adjustments$2,300$0
Value of Feature Adjustments-2,1560

Return to top

Specifications Comparison: BMW 3-Series vs. Porsche Boxster

Model Year20182007
Model3-SeriesBoxster
Body4dr Sedan2dr Convertible
Wheelbase110.6 in95.1 in
Length182.5 in170.4 in
Width71.3 in70.9 in
Height56.3 in51.0 in
Curb Weight3,630 lb.2,965 lb.
Fuel Capacity15.8 gal.17.0 gal.
Row 1 Headroom40.3 in38.4 in
Row 1 Shoulder Room55.1 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom42.0 in41.6 in
Row 2 Headroom37.7 in0.0 in
Row 2 Shoulder Room55.1 in0.0 in
Row 2 Legroom35.1 in0.0 in
Cargo Volume13.0 ft39.9 ft3

Return to top

Option Package Details
Porsche Boxster S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
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 Requested115085%
Total Not Requested20015%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%

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 and Wagons.
See TrueDelta's information for all BMW models.