8
The BMW M5 is a Vee 10 engine, 10 cylinders.
It is an inline 6 cylinder engine.
The M54B30 engine fitted to the 2000 BMW E46 330i has 6 cylinders, arranged in a straight inline configuration.
4
Either 4 or six depending on make. I am not sure about BMW but I would guess 4.
If its a boxer engine, make sure you keep the cylinders horizontal.
inline 6.
6 cylinder
The BMW R100 have four-stroke two cylinder horizontally opposed "Boxer" engine that is air cooled. You can find all of the specifications on BMW website if you need to know more information.
The 318 stands for the 3 series with the 1800 motor in it. These have 4 cylinders
Fuel is injected into cylinders. Spark plugs ignite it. Piston goes down turning crankshaft. Repeat.
2. As it`s a V8 it has 1 for every 4 cylinders.