https://en.wikipedia.org/wiki/V6_engine
"All V6 engines— regardless of the V-angle between the cylinder banks— are subject to a primary imbalance caused by each bank consisting of an
inline-three engine, due to the odd number of cylinders in each bank. Straight-six engines and flat-six engines do not experience this imbalance. To reduce the vibrations caused by this imbalance, some V6 engines use counterweights on the crankshaft and/or a counter-rotating
balance shaft."
"Due to their short length, V6 engines are often used as the larger engine option for vehicles which are otherwise produced with inline-four engines, especially in
transverse engine vehicles. A downside for luxury cars is that V6 engines produce more vibrations than
straight-six engines. Some sports cars use
flat-six engines instead of V6 engines, due to their lower centre of gravity (which improves the handling)."
Not a good high performance engine. Was never intended to be and is hardly ever used that way (relatively speaking).