Last Update: Mar. 31, 2020, 5:34 a.m.
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What is Better BMW 7-Series or BMW Z8?

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BMW 7-Series BMW Z8

7 reasons to buy BMW 7-Series

Emissions
Less CO2 emissions 144 g/mile vs 222 g/mile 54% or 78 g/mile
Higher european emission standard EURO 5 vs EURO 3 2 generations
Weight and capacity
More capacity of fuel tank 82 liters vs 73 liters 11% or 9 liters
More maximum allowable weight 2505 kg vs 1930 kg 23% or 575 kg
More maximum bearing capacity 645 kg vs 315 kg 51% or 330 kg
Warranty
More standard warranty - Mileage 994406 miles vs 62150 miles 94% or 932256 miles
Other specs
More seats 5 vs 2 3

12 reasons to buy BMW Z8

Engine and transmission
More cylinders 8 vs 6 2 more cylinders. The more cylinders = the less vibration and the engine runs more smoothly.
Better compression 11.0 vs 10.2 7% or 0.8 . The greater degree of compression = the less fuel need to produce the same power.
Piston diameter larger 89 mm vs 84 mm 6% or 5 mm larger. The larger diameter of cylinder = the greater filling ratio. Cons: increase emissions of toxic substances.
Piston stroke longer 94 mm vs 89.6 mm 5% or 4.4 mm. The longer stroke = lower fuel consumption and fewer emissions.
More engine power

400 bhp vs 326 bhp

294 kw. vs 240 kw.

19% or 74 bhp. More power of car = more top speed.
More torque 500 nM vs 450 nM 10% or 50 nM. More torque = faster acceleration.
Performance
Faster acceleration from 0 to 60 mph 4.7 sec. vs 5.9 sec. 1.2 sec.
Fuel consumption
Less fuel consumption (Combined cycle) 19 mpg vs 28.5 mpg 50% or 9.5 mpg
Less fuel consumption (Highway) 26.61 mpg vs 37.22 mpg 40% or 10.61 mpg
Less fuel consumption (City) 12.7 mpg vs 20.5 mpg 61% or 7.8 mpg
Other specs
Less weight 1690 kg vs 1860 kg 10% or 170 kg Weight of the vehicle affects: fuel consumption, acceleration dynamic, braking distance, etc.
Less turning radius 11.6 meters vs 12.2 meters 5% or 0.6 meters

Neutral reasons BMW 7-Series vs. BMW Z8

Engine and transmission
Engine speed (RPM) 5800 RPM vs 6600 RPM 12% or 800 less rpms.
Engine capacity 2979 cm3 vs 4941 cm3 40% or 1962 cm3 less
Cylinders location In line vs V8
Camshaft DOHC vs SOHC
Fuel supply With a twin-turbocharged vs Fuel injection
Turbocharging Yes vs Yes
Dimensions
Length 5072 mm vs 4400 mm 13% or 672 mm shorter
Width 1902 mm vs 1830 mm 4% or 72 mm wider
Height 1479 mm vs 1317 mm 11% or 162 mm higher
Wheels and tires
Wheelbase 3070 mm vs 2505 mm 18% or 565 mm more
Front tires size 245/50 R18 vs 245/45 ZR18Y
Rear tires size 245/50 R18 vs 275/40 ZR 18Y
Spare wheel flat tires vs 245/45 ZR18Y
Type of wheels 18" alloy wheels vs 18 alloy wheels
*Specs may vary depending on configurations and year of production(taken parameters of last released versions)