La agencia de alquiler de autos está aquí.

Because Spanish is linking nouns together with de.

• la agencia = the agency
• de alquiler = for rental / of renting
• de autos = of cars

So the structure is literally something like:

• the agency of rental of cars

That sounds awkward in English, but it is very normal in Spanish. English often stacks nouns directly, as in car rental agency, while Spanish usually connects them with de.

Because aquí gives a location, and for location Spanish normally uses estar, not ser.

• está aquí = it is here
• es is used more for identity, definition, origin, time, and similar ideas

So:

• La agencia de alquiler de autos está aquí. = The car rental agency is here.
• Es una agencia de alquiler de autos. = It is a car rental agency.

That contrast is very important:

• ser = what something is
• estar = where/how something is

Because agencia is a feminine noun in Spanish.

That means it takes feminine articles and adjectives:

• la agencia
• una agencia

This is grammatical gender, not biological gender. A business is not literally female; the noun is simply classified as feminine in Spanish.

Spanish often uses the plural in expressions like this when talking about a general category.

• alquiler de autos = car rental / rental of cars

English commonly uses a singular noun as an adjective:

• car rental agency

Spanish usually does not do that in the same way, so it says:

• agencia de alquiler de autos

You may also hear singular forms in some contexts, but de autos is very natural here.

Alquiler is the noun, and alquilar is the verb.

• alquilar = to rent
• alquiler = rental, renting, rent

So:

• agencia de alquiler de autos = agency for car rental
• Voy a alquilar un auto. = I’m going to rent a car.
• El alquiler es caro. = The rental is expensive.

This is a very common verb-noun pair in Spanish.

Yes, in many parts of Latin America that is also natural.

Regional variation matters here:

• alquiler is common and widely understood
• renta is also very common in many countries, especially in contexts like car rental

So depending on the country, you may hear:

• agencia de alquiler de autos
• agencia de renta de autos

Both can mean the same thing. If you are learning general Latin American Spanish, it is good to recognize both.

Yes. This is mostly regional vocabulary.

Depending on the country, people may say:

• autos
• carros
• coches

In much of Latin America:

• auto and carro are common

In Spain:

• coche is more common

So these are all possible depending on region:

• agencia de alquiler de autos
• agencia de alquiler de carros
• agencia de alquiler de coches

For Latin America, autos is a good neutral choice, though carros is very common in many places.

Because that is the normal and natural placement in this kind of statement.

• La agencia de alquiler de autos está aquí.

Spanish often places location words like aquí, allí, and ahí after the verb in simple sentences.

You could move things around for emphasis, but the given order is the most straightforward.

For example:

• Aquí está la agencia de alquiler de autos.

That version is also correct, but it feels more like Here is the car rental agency with extra focus on here.

Normally, you need la here.

• La agencia de alquiler de autos está aquí.

In Spanish, singular countable nouns usually need an article unless there is a special reason not to use one.

Without the article, the sentence sounds incomplete or unnatural in ordinary speech.

You might omit the article in labels, signs, headlines, or notes, but not in a normal full sentence like this.

Not exactly, though they are related.

• de alquiler describes the type or function of the agency
• para alquilar means to rent or for renting and often sounds more like purpose

So:

• agencia de alquiler de autos = car rental agency
• agencia para alquilar autos = agency to rent cars

The first one is more idiomatic as the name of the business type. The second is understandable but less standard for this exact phrase.

The accent mark shows where the stress goes.

• está is stressed on the second syllable: es-TA

The written accent is important because it marks the stressed syllable clearly.

Basic pronunciation:

• es like ess
• tá with stress, roughly tah

So:

• está aquí sounds roughly like ess-TA ah-KEE

The accent mark does not change the meaning by itself here so much as it tells you the correct stress pattern.

Yes, depending on context, aquí can be translated as here or over here.

Its exact feel depends on tone, gesture, and situation.

• If someone is pointing nearby, aquí might feel like right here or over here
• In a neutral translation, here is the safest choice

So the Spanish sentence is simple, but English may translate it in slightly different natural ways.

Usually no, or at least not as a general neutral choice.

For a business, native speakers are much more likely to say:

• la agencia de alquiler de autos
• la agencia de renta de autos
• la compañía de alquiler de autos

The exact wording varies by region, but agencia is a very standard and widely understandable word here.

So if you want a safe, broadly useful phrase, the original sentence is a good model.