BMW 3-Series BMW 3-Series 2018 Porsche 718 Cayman Porsche 718 Cayman 2017

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

Join Us

BMW 3-Series vs. Porsche 718 Cayman 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 718 Cayman Invoice Comparison

Lowest Total Price: $55,735

BMW 3-Series 330i   
Difference: $33,095

Calculate Payments

  Down Payment Interest Rate Term
Model Year201820182017
Model3-Series3-Series718 Cayman
Trim328d330iS
Body4dr Wagon4dr Wagon2dr Hatch
Base Price $45,950 $44,450 $66,300
Obstacle detection, rear 750 750  
Navigation system 1,700 1,700 1,730
Adaptive cruise control, all-speed 1,200 1,200 1,670
Metallic paint (extra cost) 550 550 640
Leather seating surfaces 1,450 1,450  
Heated front seats 500 500  
Blind spot warning system 500 500 690
Heated steering wheel 190 190 470
Adaptive dampers - electrical 700    
M Sport Design 3,950    
Apple CarPlay support 300 300  
Convenience Tier   850  
Track Handling Package   2,300  
7-speed automated manual     3,200
Adaptive sport seats plus     3,825
Premium Package     1,370
Porsche Connect Plus     1,300
Sport suspension (upgrade)     2,070
Wood trim     1,535
Rear wiper     360
Power-folding mirrors     320
LED headlights     1,170
Proximity key     790
Interior ambient lighting     340
Voice control for nav and audio     0
Obstacle detection, rear 690 690  
Navigation system 1,565 1,565 0
Adaptive cruise control, all-speed 1,105 1,105 0
Metallic paint (extra cost) 505 505 0
Leather seating surfaces 1,335 1,335  
Heated front seats 460 460  
Blind spot warning system 460 460 0
Heated steering wheel 175 175 0
Adaptive dampers - electrical 645    
M Sport Design 3,635    
Apple CarPlay support 275 275  
Convenience Tier   780  
Track Handling Package   2,115  
7-speed automated manual     0
Adaptive sport seats plus     0
Premium Package     0
Porsche Connect Plus     0
Sport suspension (upgrade)     0
Wood trim     0
Rear wiper     0
Power-folding mirrors     0
LED headlights     0
Proximity key     0
Interior ambient lighting     0
Voice control for nav and audio     0
Options (change) 11,790 10,290 21,480
Options (change) 10,850 9,465 0
Destination 995 995 1,050
Total Price $58,735 $55,735 $88,830

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 718 Cayman 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 718 Cayman

Lowest Adjusted Price: BMW 3-Series 330i
Lowest Adjusted Invoice: Porsche 718 Cayman S
TrueDelta Adjusted Price Difference: $36,530
TrueDelta Adjusted Invoice Difference: $48,196
Model Year201820182017
Model3-Series3-Series718 Cayman
Trim328d330iS
Body4dr Wagon4dr Wagon2dr Hatch
Engine180hp I4 D248hp I4350hp H4
TransmissionT8T8S7
DrivetrainAWDAWDRWD
EPA Fuel Economy (city/highway)17/24 MPG17/24 MPG21/28 MPG
Audio (watts, speakers)205, 9205, 9110, 6
Tire (rear if not all the same)225/45-18225/45-18235/40-19
Total Price$58,735$55,735$88,830
Adjustments for Features-3,360-3,4350
Feature-Adjusted Total Price$55,375$52,300$88,830
Cost Above Minimum$3,075$0$0

Return to top

Features Comparison: BMW 3-Series vs. Porsche 718 Cayman

Model Year201820182017
Model3-Series3-Series718 Cayman
Trim328d330iS
Body4dr Wagon4dr Wagon2dr Hatch
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300 
7-speed automated manual  $1200
AWD$1700$1700 
RWD  $0
Accessories 
Hands-free trunk or liftgate$100$100 
Power rear side windows$200$200 
Remote window/roof operation$15$15 
Tilt/telescoping steering wheel, manual$250$250 
Tilt/telescoping steering wheel, power  $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0 
Automatic braking, high-speed or partial  $200
High performance brake pads (optional) $0 
Hill descent control$250$250 
Radar- or camera-based collision preparation system  $0
Tires, run-flat$150  
Cargo Management 
Air-conditioned storage compartment$50$50 
Cargo area partition net$40$40 
Cargo cover$75$75 
Cargo net  $40
Liftglass or two-piece tailgate$150$150 
Climate Control 
Rear air vents with manual controls$150$150 
Water-repellent front-door glass  $15
Engine / Motor 
Mid-engine configuration  $0
Raised top speed limiter $0 
Exterior 
Black exterior trim (optional)$0  
Bright-finished exhaust tip(s)  $25
Painted brake calipers (optional) $0$0
Panoramic sunroof$1200$1200 
Rear spoiler$200$200 
Retractable rear spoiler  $400
Sport rocker panels (optional)$0  
Infotainment 
DVD-Audio-compatible player  $0
DVD-compatible player$0$0 
Media drive$15$15 
Media drive, small  $5
Off-road navigation system  $0
S Voice support$0$0 
Satellite radio  $200
Satellite radio - one year subscription$250$250 
SD Card slot  $25
Traffic + travel information$25$25 
Traffic information  $25
Voice control for external devices$0$0 
Wi-Fi hotspot  $50
Instruments, Lights, and Mirrors 
Auto-dimming headlights  $200
Auto-dimming passenger-side mirror  $75
Compass$0$0 
Fog light, rear  $100
Fog lights $125 
Headlight washers  $50
Mirror tilt-down in reverse$25$25 
Steering-linked headlights  $150
Turn signals on or near mirrors$25$25 
Seats and Interior Trim 
Center armrest(s), second row$50$50 
Folding second row seats$300$300 
Leather door panel trim  $250
Manual thigh support length adjuster, driver seat$50$50 
Manual thigh support length adjuster, passenger seat$50$50 
No leather in second row  $-300
Power thigh bolsters, driver seat  $100
Power thigh bolsters, passenger seat  $100
Power thigh support length adjuster, driver seat  $100
Power thigh support length adjuster, passenger seat  $100
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200$200 
Sport suspension (upgrade) $0$0
Transmission 
Launch control $100 
Total Value of Features$6,820$6,895$3,460
Value of Feature Adjustments$3,360$3,435$0
Value of Feature Adjustments-3,161-3,2340

Return to top

Specifications Comparison: BMW 3-Series vs. Porsche 718 Cayman

Model Year20182017
Model3-Series718 Cayman
Body4dr Wagon2dr Hatch
Wheelbase110.6 in97.4 in
Length182.0 in172.4 in
Width71.3 in70.9 in
Height56.3 in51.0 in
Curb Weight3,791 lb.3,054 lb.
Fuel Capacity15.8 gal.14.3 gal.
Row 1 Headroom40.4 in0.0 in
Row 1 Shoulder Room55.1 in0.0 in
Row 1 Legroom42.0 in0.0 in
Row 2 Headroom38.3 in0.0 in
Row 2 Shoulder Room55.1 in0.0 in
Row 2 Legroom35.0 in0.0 in
Cargo Volume,
Minimum
17.5 ft315.0 ft3
Cargo Volume,
Maximum
53.0 ft315.0 ft3

Return to top

Option Package Details
BMW 3-Series 328d

Navigation system
FeatureValueRequested?
DVD-compatible player0No
Voice control for nav and audio100Yes
Media drive15No
In-vehicle Internet150Yes
Handwriting recognition200Yes
Siri Eyes Free support0Yes
S Voice support0No
4G LTE connectivity0Yes
Navigation map updates, three years0Yes
Traffic + travel information25No
Remote app25Yes
Navigation system600Yes
Total Requested107596%
Total Not Requested404%
M Sport Design
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Sport front fascia (optional)0No
Sport rocker panels (optional)0No
Power 4-way lumbar adjuster, passenger seat150Yes
Proximity key250Yes
Satellite radio - one year subscription250No
Hands-free trunk or liftgate100No
Power 4-way lumbar adjuster, driver seat150Yes
Black exterior trim (optional)0No
225/45VR18 tires400No
Total Requested80052%
Total Not Requested75048%

Option Package Details
BMW 3-Series 330i

Navigation system
FeatureValueRequested?
DVD-compatible player0No
Voice control for nav and audio100Yes
Media drive15No
In-vehicle Internet150Yes
Handwriting recognition200Yes
Siri Eyes Free support0Yes
S Voice support0No
4G LTE connectivity0Yes
Navigation map updates, three years0Yes
Traffic + travel information25No
Remote app25Yes
Navigation system600Yes
Total Requested107596%
Total Not Requested404%
Convenience Tier
FeatureValueRequested?
Power 4-way lumbar adjuster, driver seat150Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Proximity key250Yes
Satellite radio - one year subscription250No
Hands-free trunk or liftgate100No
Total Requested55061%
Total Not Requested35039%
Track Handling Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Adaptive dampers - electrical500Yes
Performance braking system (optional)250No
Painted brake calipers (optional)0Yes
High performance brake pads (optional)0No
Variable steering ratio (optional)0No
Raised top speed limiter0No
225/45YR18 tires200No
255/40YR18 tires200No
Total Requested75054%
Total Not Requested65046%

Option Package Details
Porsche 718 Cayman S

Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Radar- or camera-based collision preparation system0No
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Total Requested90082%
Total Not Requested20018%
7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100Yes
Total Requested100100%
Total Not Requested00%
Heated steering wheel
FeatureValueRequested?
Heated steering wheel100Yes
Audio controls on steering wheel125Yes
Total Requested225100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Handwriting recognition200Yes
Total Requested800100%
Total Not Requested00%
Sport suspension (upgrade)
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Adaptive dampers - electrical500Yes
Total Requested750100%
Total Not Requested00%
LED headlights
FeatureValueRequested?
LED headlights500Yes
Auto-dimming headlights200No
Total Requested50071%
Total Not Requested20029%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support length adjuster, passenger seat100No
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Tilt/telescoping steering wheel, power100No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support length adjuster, driver seat100No
Power fore-aft adjuster, passenger seat100Yes
Front sport buckets100Yes
Total Requested130072%
Total Not Requested50028%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Heated front seats200Yes
Dual-zone climate control125Yes
Residual heat50Yes
Automatic air recirculation100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Steering-linked headlights150No
Headlight washers50No
Total Requested100078%
Total Not Requested27522%
Porsche Connect Plus
FeatureValueRequested?
Traffic information25Yes
In-vehicle Internet150Yes
Wi-Fi hotspot50No
4G LTE connectivity0Yes
Navigation map updates, three years0Yes
Telematics service, such as OnStar200Yes
App support0Yes
Remote app25Yes
Apple CarPlay support100Yes
Total Requested50091%
Total Not Requested509%

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.