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.

In the modern automotive industry, the V12 has reached its last leg. With tightening emission regulations, what was once considered the status quo for performance and luxury has been phased out by ...