There is a range of common adjectives that come to mind when we think of V12 engines. "Smooth" is one, evidenced by engines like the V12 that powers the ultra-luxe Rolls-Royce Cullinan Series II.

When it comes to vehicle assembly, we often think of the entire car. The thing is, some plants are dedicated to churning out engines, and an example of that is BMW's plant in Hams Hall, Birmingham.