Original: When Lancia pioneered the V6 in 1950 , they used a 60 Â angle between the cylinder banks and a six-throw crankshaft to achieve equally spaced firing intervals of 120 Â .
Simplified: The Lancia V6 in 1950 used a 60 Â angle between the cylinder banks and a six-throw crankshaft . to achieve equally spaced firing intervals of 120 Â .