Relatively speaking, everyone is the most common. For example, 1.8L is written on the back of the car, which naturally represents the displacement of the car.

As we all know, 1.6L and below are economical displacement vehicles, and this L accurately represents the engine displacement. The larger the value, the more fuel consumption, and some off-road vehicles reach more than 4.0L.

In addition, L has another meaning, that is, the extended version, such as Audi A6L, which is the extended version after Audi A6 entered China.

So the L here is very different from the L mentioned above, and it is easy to distinguish. It represents a number plus l for displacement, and here represents the model plus l for lengthening.