nisi he kuruma de iku.

A natural reading is:

にし へ くるま で いく。

A few notes:

• 西 = にし (west)
• へ is the particle written へ but pronounced え
• 車 = くるま (car)
• で = particle
• 行く = いく (to go)

So when spoken, it sounds like:

にしえ くるまで いく。

When へ is used as a particle, it is normally pronounced え, not へ.

So:

• 西へ is written with へ
• but pronounced にしえ

This is just a standard feature of Japanese particles. The same kind of thing happens with は, which is usually pronounced わ when it is a particle.

へ marks the direction of movement.

In 西へ, it means something like:

• toward the west
• to the west

So へ tells you where someone is heading, not what method they are using. The method is shown by で later in the sentence.

Both へ and に can be used with verbs of movement like 行く.

• 西へ行く = go toward/to the west
• 西に行く = go to the west

The difference is usually small.

A common explanation is:

• へ emphasizes direction
• に emphasizes destination

But in many everyday sentences, either one can work. In this sentence, へ gives a nice sense of heading westward.

Because で marks the means/method used to do something.

So:

• 車で行く = go by car
• 電車で行く = go by train
• バスで行く = go by bus

If you used を, it would not mean by car.
With transportation, で is the normal particle for saying by means of something.

In this sentence, it most naturally means by car.

Japanese で often marks the tool, method, or means used for an action. So 車で行く is best understood as:

• go by car
• drive there or go there in a car, depending on context

English may translate it in slightly different ways, but the grammar idea is using a car as the means of travel.

Because Japanese sentences normally put the main verb at the end.

That is one of the most important word-order patterns in Japanese.

So this sentence is structured like:

• 西へ = toward the west
• 車で = by car
• 行く = go

Very roughly, Japanese often works like:

destination + method + verb

rather than English go + to destination + by method.

The subject is omitted.

This is very common in Japanese. If the subject is already clear from context, Japanese often leaves it out.

So 西へ車で行く。 could mean:

• I go west by car
• He goes west by car
• She will go west by car
• We are going west by car

depending on the situation.

Japanese often relies heavily on context instead of stating the subject every time.

It is in the plain form because the verb is 行く, not 行きます.

• 西へ車で行く。 = plain / casual / dictionary-style
• 西へ車で行きます。 = polite

The plain form is very common in dictionaries, informal speech, and casual writing.
The polite form is used in many everyday polite situations.

It can mean either, depending on context.

Japanese non-past forms like 行く can refer to:

• a habitual action: go
• a future action: will go

So 西へ車で行く。 could mean:

• go west by car
• will go west by car

Context tells you which one is meant.

The spaces are probably just for learning purposes.

Normal Japanese is usually written without spaces, so this sentence would normally appear as:

西へ車で行く。

Textbooks and beginner materials sometimes add spaces to make the parts easier to see:

• 西
• へ
• 車
• で
• 行く

But in real Japanese writing, those spaces are usually not used.