BMW 3-Series Gran Turismo BMW 3-Series Gran Turismo 2018 Porsche Boxster Porsche Boxster 2008

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

Join Us

BMW 3-Series Gran Turismo 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 Gran Turismo vs. Porsche Boxster Invoice Comparison

Lowest Total Price: $51,645

BMW 3-Series Gran Turismo 330i   
Difference: $10,485

Lowest Total Invoice: $48,720

BMW 3-Series Gran Turismo 330i   
Difference: $5,217

Calculate Payments

  Down Payment Interest Rate Term
Model Year2018201820082008
Model3-Series Gran Turismo3-Series Gran TurismoBoxsterBoxster
Trim330i340iBaseS
Body4dr Hatch4dr Hatch2dr Convertible2dr Convertible
Base Price $44,850 $50,700 $45,800 $55,700
Base Invoice $42,390 $47,830 $39,923 $43,512
Luxury Design 0 0    
Navigation system 1,700 1,700 3,110 3,110
Convenience Tier 850      
Metallic paint (extra cost) 550 550 690 690
Leather seating surfaces 1,450 1,450    
Heated front seats 500 500 480 480
Obstacle detection, rear 750 750 530 530
Sport Chrono Package     920 920
Adaptive dampers - electrical     1,990 1,990
Adaptive Sports Seats     3,055 3,055
Auto-dimming rearview mirror     690 690
Xenon HID headlights     1,090 1,090
Floor mats     115 115
Automatic climate control, front     550 550
Wood trim     890 890
Carbon fiber / leather-wrapped steering wheel     1,360 1,360
Luxury Design 0 0    
Navigation system 1,565 1,565 2,644 2,644
Convenience Tier 780      
Metallic paint (extra cost) 505 505 587 587
Leather seating surfaces 1,335 1,335    
Heated front seats 460 460 408 408
Obstacle detection, rear 690 690 451 451
Sport Chrono Package     782 782
Adaptive dampers - electrical     1,692 1,692
Adaptive Sports Seats     2,597 2,597
Auto-dimming rearview mirror     587 587
Xenon HID headlights     927 927
Floor mats     98 98
Automatic climate control, front     468 468
Wood trim     757 757
Carbon fiber / leather-wrapped steering wheel     1,156 1,156
Options (change) 5,800 4,950 15,470 15,470
Options (change) 5,335 4,555 13,154 13,154
Destination 995 995 860 860
Total Price $51,645 $56,645 $62,130 $72,030
Total Invoice $48,720 $53,380 $53,937 $57,526

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 Gran Turismo 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 Gran Turismo vs. Porsche Boxster

Lowest Adjusted Price and Invoice: BMW 3-Series Gran Turismo 330i
TrueDelta Adjusted Price Difference: $15,210
TrueDelta Adjusted Invoice Difference: $9,674
Model Year2018201820082008
Model3-Series Gran Turismo3-Series Gran TurismoBoxsterBoxster
Trim330i340iBaseS
Body4dr Hatch4dr Hatch2dr Convertible2dr Convertible
Engine248hp I4320hp I6245hp H6295hp H6
TransmissionT8T8M5M6
DrivetrainAWDAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)205, 9600, 1650, 4230, 7
Tire (rear if not all the same)225/45-18225/45-18205/55-17235/40-18
Total Price$51,645$56,645$62,130$72,030
Adjustments for Features-4,725-4,9750-150
Feature-Adjusted Total Price$46,920$51,670$62,130$71,880
Cost Above Minimum$0$4,750$0$9,750
Total Invoice$48,720$53,380$53,937$57,526
Adjustments for Features-4,457-4,6880-120
Feature-Adjusted Total Invoice$44,263$48,692$53,937$57,406
Cost Above Minimum$0$4,429$0$3,469

Return to top

Features Comparison: BMW 3-Series Gran Turismo vs. Porsche Boxster

Model Year2018201820082008
Model3-Series Gran Turismo3-Series Gran TurismoBoxsterBoxster
Trim330i340iBaseS
Body4dr Hatch4dr Hatch2dr Convertible2dr Convertible
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300  
5-speed manual  $0 
6-speed manual   $150
AWD$1700$1700  
RWD  $0$0
Accessories 
Hands-free trunk or liftgate$100$100  
Power liftgate$350$350  
Power rear side windows$200$200  
Proximity key$250$250  
Remote app$25$25  
Remote window/roof operation$15$15  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0  
Brake assist$50$50  
Hill descent control$250$250  
Knee airbag, driver$75$75  
Knee airbag, passenger$75$75  
Obstacle detection, front$150$150  
Rearview camera$200$200  
Roll bar  $200$200
Side curtain airbags$350$350  
Tires, run-flat$150$150  
Cargo Management 
Air-conditioned storage compartment$50$50  
Cargo area rails w/tie downs$50$50  
Cargo cover$75$75  
Cargo net  $40$40
Climate Control 
Automatic air recirculation$100$100  
Dual-zone climate control$125$125  
Rear air vents with manual controls$150$150  
Residual heat$50$50  
Water-repellent front-door glass  $15$15
Engine / Motor 
Automatic start / stop$150$150  
Mid-engine configuration  $0$0
Regenerative braking$0$0  
Exterior 
Panoramic sunroof$1200$1200  
Power convertible top  $4000$4000
Infotainment 
4G LTE connectivity$0$0  
App support$0$0  
Aux input$50$50  
Bluetooth audio streaming$25$25  
Bluetooth cell phone link$100$100  
DVD-compatible player$0$0  
Handwriting recognition$200$200  
HD radio$50$50  
In-vehicle Internet$150$150  
Media drive$15$15  
MP3-compatible player$50$50  
Navigation map updates, three years$0$0  
S Voice support$0$0  
Satellite radio - one year subscription$250$250  
Siri Eyes Free support$0$0  
Surround sound $250  
Telematics service, such as OnStar$200$200  
Traffic + travel information$25$25  
USB port$25$25  
Voice control for external devices$0$0  
Voice control for nav and audio$100$100  
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror  $75$75
Automatic headlights$125$125  
Chronometer  $100$100
Compass$0$0  
Fog light, rear  $100$100
Headlight washers  $50$50
LED headlights$1000$1000  
Mirror tilt-down in reverse$25$25  
Power-folding mirrors$50$50  
Turn signals on or near mirrors$25$25  
Xenon HID headlights  $500$500
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel  $150$150
Center armrest(s), second row$50$50  
Folding second row seats$300$300  
Leather door panel trim  $250$250
Leather-wrapped steering wheel$150$150  
Manual recliner, second row seats$75$75  
Manual thigh support length adjuster, driver seat$50$50  
Manual thigh support length adjuster, passenger seat$50$50  
Metal pedals  $75$75
No leather in second row  $-300$-300
Power 4-way lumbar adjuster, passenger seat$150$150  
Power thigh bolsters, driver seat  $100$100
Power thigh bolsters, passenger seat  $100$100
Suspension, Wheels, and Tires 
Adaptive dampers - electrical  $500$500
Transmission 
Launch control$100$100  
Steering-wheel-mounted transmission controls$100$100  
Total Value of Features$10,680$10,930$5,955$6,105
Value of Feature Adjustments$4,725$4,975$0$150
Value of Feature Adjustments-4,457-4,6880-120

Return to top

Specifications Comparison: BMW 3-Series Gran Turismo vs. Porsche Boxster

Model Year20182008
Model3-Series Gran TurismoBoxster
Body4dr Hatch2dr Convertible
Wheelbase115.0 in95.1 in
Length190.0 in170.4 in
Width72.0 in70.9 in
Height59.4 in51.0 in
Curb Weight4,016 lb.2,856 lb.
Fuel Capacity15.8 gal.17.0 gal.
Row 1 Headroom41.3 in38.4 in
Row 1 Shoulder Room55.2 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom42.0 in41.6 in
Row 2 Headroom38.3 in0.0 in
Row 2 Shoulder Room54.1 in0.0 in
Row 2 Legroom39.2 in0.0 in
Cargo Volume,
Minimum
18.3 ft39.9 ft3
Cargo Volume,
Behind R2
18.4 ft39.9 ft3
Cargo Volume,
Maximum
56.5 ft39.9 ft3

Return to top

Option Package Details
BMW 3-Series Gran Turismo 330i

Luxury Design
FeatureValueRequested?
Additional chrome trim0No
Bright-finished exhaust tip(s)25Yes
Chrome interior accents (optional)0No
Total Requested25100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
DVD-compatible player0No
Voice control for nav and audio100No
Media drive15No
In-vehicle Internet150No
Handwriting recognition200No
Siri Eyes Free support0No
S Voice support0No
4G LTE connectivity0No
Navigation map updates, three years0No
Navigation system600Yes
Traffic + travel information25No
Remote app25No
Total Requested60054%
Total Not Requested51546%
Convenience Tier
FeatureValueRequested?
Power 4-way lumbar adjuster, driver seat150Yes
Power 4-way lumbar adjuster, passenger seat150No
Proximity key250No
Satellite radio - one year subscription250No
Hands-free trunk or liftgate100No
Total Requested15017%
Total Not Requested75083%

Option Package Details
BMW 3-Series Gran Turismo 340i

Luxury Design
FeatureValueRequested?
Additional chrome trim0No
Bright-finished exhaust tip(s)25Yes
Chrome interior accents (optional)0No
Total Requested25100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
DVD-compatible player0No
Voice control for nav and audio100No
Media drive15No
In-vehicle Internet150No
Handwriting recognition200No
Siri Eyes Free support0No
S Voice support0No
4G LTE connectivity0No
Navigation map updates, three years0No
Navigation system600Yes
Traffic + travel information25No
Remote app25No
Total Requested60054%
Total Not Requested51546%

Option Package Details
Porsche Boxster

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%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
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 height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
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
Total Requested115085%
Total Not Requested20015%

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%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
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 height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
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
Total Requested115085%
Total Not Requested20015%

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 Hatchbacks
See TrueDelta's information for all BMW models.