Last Update: Apr. 01, 2020, 5:28 a.m.
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What is Better BMW 3-Series or Porsche Cayman?

Exterior

BMW 3-Series Porsche Cayman

2 reasons to buy BMW 3-Series

Emissions
Less CO2 emissions 95 g/mile vs 119 g/mile 25% or 24 g/mile
Higher european emission standard EURO 6 vs EURO 5 1 generation

7 reasons to buy Porsche Cayman

Engine and transmission
More cylinders 6 vs 4 2 more cylinders. The more cylinders = the less vibration and the engine runs more smoothly.
More engine power

271 bhp vs 181 bhp

vs

33% or 90 bhp. More power of car = more top speed.
Performance
Faster acceleration from 0 to 60 mph 5.5 sec. vs 7.6 sec. 2.1 sec.
More top speed 165 mph vs 143 mph 22 mph
Fuel consumption
Less fuel consumption (Combined cycle) 33.71 mpg vs 39.33 mpg 17% or 5.62 mpg
Weight and capacity
More capacity of fuel tank 64 liters vs 60 liters 6% or 4 liters
Other specs
Less weight 1310 kg vs 1540 kg 18% or 230 kg Weight of the vehicle affects: fuel consumption, acceleration dynamic, braking distance, etc.

Neutral reasons BMW 3-Series vs. Porsche Cayman

Engine and transmission
Engine capacity 1997 cm3 vs 2706 cm3 26% or 709 cm3 less
Fuel supply Turbocharged vs Multi-point injection fuel
Turbocharging Yes vs Yes
Dimensions
Length 4824 mm vs 4380 mm 9% or 444 mm shorter
Width 2047 mm vs 1801 mm 12% or 246 mm wider
Height 1508 mm vs 1294 mm 14% or 214 mm higher
Wheels and tires
Wheelbase 2920 mm vs 2475 mm 15% or 445 mm more
*Specs may vary depending on configurations and year of production(taken parameters of last released versions)