– Why can V6 engines not just get “smaller” for fuel efficiency vs going Turbo V4?

Question

I guess what about having extra pistons makes mpg worse vs. 1.8L, 2.5L, 3.5L, etc.?

In: 168

Answer 1

Small v6 engines are extremely powerful. But small cylinders like that take precision. And that takes money for assembly lines. Look at F1. And enormously powerful small displacement V6 that sips gas. Granted it is also a hybrid power plant but still, even just the ICE puts out a ton of bHP.