Last Update: Mar. 31, 2020, 5:34 a.m.
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What is Better BMW 5-Series or Opel Signum?

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BMW 5-Series Opel Signum

7 reasons to buy BMW 5-Series

Engine and transmission
More cylinders 8 vs 4 4 more cylinders. The more cylinders = the less vibration and the engine runs more smoothly.
More engine power

552 bhp vs 175 bhp

vs 127 kw.

68% or 377 bhp. More power of car = more top speed.
Performance
Faster acceleration from 0 to 60 mph 4.2 sec. vs 9.40 sec. 5.2 sec.
More top speed 155 mph vs 137 mph 18 mph
Fuel consumption
Less fuel consumption (Combined cycle) 29.5 mpg vs 31.98 mpg 8% or 2.48 mpg
Weight and capacity
More minimum boot capacity 520 liters vs 365 liters 30% or 155 liters
More maximum towing weight with brakes 2000 kg vs 1700 kg 15% or 300 kg

4 reasons to buy Opel Signum

Engine and transmission
More valves per cylinder 16 vs 4 12 more valves per cylinder. The more valves = the better combustion of the fuel.
Emissions
Less CO2 emissions 133 g/mile vs 144 g/mile 8% or 11 g/mile
Other specs
Less weight 1485 kg vs 1870 kg 26% or 385 kg Weight of the vehicle affects: fuel consumption, acceleration dynamic, braking distance, etc.
Less turning radius 11.40 meters vs 12 meters 5% or 0.6 meters

Neutral reasons BMW 5-Series vs. Opel Signum

Engine and transmission
Engine capacity 4395 cm3 vs 1998 cm3 55% or 2397 cm3 more
Turbocharging Yes vs Yes
Speeds 7 vs 6 1 more
Dimensions
Length 4910 mm vs 4651 mm 5% or 259 mm shorter
Width 1891 mm vs 1798 mm 5% or 93 mm wider
Height 1456 mm vs 1466 mm 1% or 10 mm lower
Wheels and tires
Wheelbase 2964 mm vs 2830 mm 5% or 134 mm more
*Specs may vary depending on configurations and year of production(taken parameters of last released versions)