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BMW M3 vs Porsche Cayman

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

BMW logo

2027 BMW M3

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Porsche logo

2016 Porsche Cayman

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Overview

SpecBMW M3SedanPorsche CaymanBase
Selected trimSedanBase
Body styleSedanCoupe
Drivetrainrear wheel driverear wheel drive
Fuel typepremium unleaded (required)premium unleaded (required)
Transmission6-speed manual6-speed manual
Engine typegasgas
Model year20272016

Pricing & market

SpecBMW M3SedanPorsche CaymanBase
MSRP$79,300$52,600 (best)
Lowest listing price$35,831 (best)$121,423
Median listing price$81,340 (best)$121,423
Highest listing price$95,762 (best)$121,423
For sale now8 (best)1

Fuel economy & range

SpecBMW M3SedanPorsche CaymanBase
Combined MPG19 MPG24 MPG (best)
City MPG16 MPG20 MPG (best)
Highway MPG23 MPG30 MPG (best)
Fuel tank15.6 gal16.9 gal (best)

Performance

SpecBMW M3SedanPorsche CaymanBase
Horsepower473 hp (best)275 hp
Torque406 lb-ft (best)214 lb-ft
Engine size3 L (best)2.7 L
CylindersI6flat 6

Size & capability

SpecBMW M3SedanPorsche CaymanBase
Seating5 seats (best)2 seats
Doors4 (best)2
Cargo volume16.9 cu ft (best)15 cu ft
Payload860 lbs (best)761 lbs
Curb weight3,840 lbs2,888 lbs (best)
Ground clearance4.7 in (best)—
Wheelbase112.5 in (best)97.4 in
Length189.1 in (best)172.4 in
Width74.3 in (best)70.9 in
Height56.6 in (best)50.9 in

Safety & recalls

SpecBMW M3SedanPorsche CaymanBase
NHTSA overall—Not Rated
Frontal crash (driver)—Not Rated
Frontal crash (passenger)—Not Rated
Side crash (driver)—Not Rated
Side crash (passenger)—Not Rated
Side pole—Not Rated
Rollover—Not Rated
Open recalls (YMM scope)None reportedNone reported

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimBMW M3Porsche Cayman
1

Sedan

$79,300 MSRP(Currently comparing)

Base

$52,600 MSRP(Currently comparing)

2

Competition Sedan

$83,500 MSRP

S

$64,100 MSRP

3

Competition xDrive Sedan

$88,600 MSRP

GTS

$75,200 MSRP

4—

GT4

$84,600 MSRP

Live inventory

BMW M3 vs Porsche Cayman FAQ

Which is better: 2027 BMW M3 or 2016 Porsche Cayman?
It depends on priorities. OpenDealer compares 2027 BMW M3 vs 2016 Porsche Cayman on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2027 BMW M3 or 2016 Porsche Cayman?
Based on starting MSRP, the 2016 Porsche Cayman starts lower at $52,600. Live BMW M3 listings start at $35,831. Live Porsche Cayman listings start at $121,423.
Which has better startingMsrp: 2027 BMW M3 or 2016 Porsche Cayman?
The 2016 Porsche Cayman leads on startingMsrp in this comparison (52,600).
Which has better combinedMpg: 2027 BMW M3 or 2016 Porsche Cayman?
The 2016 Porsche Cayman leads on combinedMpg in this comparison (24).
Which has better horsepower: 2027 BMW M3 or 2016 Porsche Cayman?
The 2027 BMW M3 leads on horsepower in this comparison (523).
Which has better seats: 2027 BMW M3 or 2016 Porsche Cayman?
The 2027 BMW M3 leads on seats in this comparison (5).
How do the NHTSA safety ratings compare for 2027 BMW M3 vs 2016 Porsche Cayman?
NHTSA overall crash-test ratings in this comparison: Porsche Cayman (Not Rated/5 NHTSA overall).